CINXE.COM

<!DOCTYPE html> <html class="client-nojs" lang="en" dir="ltr"> <head> <meta charset="UTF-8"> <title>Category:Abacus - Wikimedia Commons</title> <script>(function(){var className="client-js";var cookie=document.cookie.match(/(?:^|; )commonswikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy","wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"92e9d9c5-4ae1-45ac-9a2f-192c7d37356b","wgCanonicalNamespace":"Category","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":14,"wgPageName":"Category:Abacus","wgTitle":"Abacus","wgCurRevisionId":919340985,"wgRevisionId":919340985,"wgArticleId":1177946,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"], "wgCategories":["Uses of Wikidata Infobox","Mechanical calculators","History of arithmetic","Arithmetic","Didactic method","Mathematical manipulatives","Beads"],"wgPageViewLanguage":"en","wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"Category:Abacus","wgRelevantArticleId":1177946,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"commons","wgCiteReferencePreviewsActive":true,"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":false,"wgVisualEditor":{"pageLanguageCode":"en","pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":true,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":2000,"wgCentralAuthMobileDomain":false,"upwizPropertyTitles":{"P180":"Main subjects visible in this work"},"upwizPropertyPlaceholders":{"P180":"e.g., Angolan giraffe"}, "upwizPropertyCopyLabels":{"P180":"Main subjects"},"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"personal","wgULSisCompactLinksEnabled":true,"wgVector2022LanguageInHeader":false,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q6423154","wbmiDefaultProperties":["P180"],"wbmiPropertyTitles":{"P180":"Items portrayed in this file"},"wbmiPropertyTypes":{"P180":"wikibase-item"},"wbmiRepoApiUrl":"/w/api.php","wbmiHelpUrls":{"P180":"https://commons.wikimedia.org/wiki/Special:MyLanguage/Commons:Depicts"},"wbmiExternalEntitySearchBaseUri":"https://www.wikidata.org/w/api.php","wbmiSupportedDataTypes":["wikibase-item","string","quantity","time","monolingualtext","external-id","globe-coordinate","url"],"wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"]};RLSTATE={"ext.gadget.Long-Image-Names-in-Categories":"ready","ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready", "ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","mediawiki.action.styles":"ready","ext.categoryTree.styles":"ready","mediawiki.page.gallery.styles":"ready","mediawiki.helplink":"ready","skins.vector.styles.legacy":"ready","jquery.makeCollapsible.styles":"ready","ext.tmh.player.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","codex-search-styles":"ready","ext.uls.pt":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["mmv.bootstrap","ext.categoryTree","site","mediawiki.page.ready","jquery.makeCollapsible","skins.vector.legacy.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.Slideshow","ext.gadget.ZoomViewer","ext.gadget.CollapsibleTemplates","ext.gadget.fastcci","ext.gadget.Stockphoto","ext.gadget.WatchlistNotice","ext.gadget.AjaxQuickDelete","ext.gadget.WikiMiniAtlas","ext.gadget.LanguageSelect","ext.gadget.PictureOfTheYearEnhancements","ext.tmh.player","ext.urlShortener.toolbar", "ext.centralauth.centralautologin","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.wikimediaEvents.wikibase","ext.navigationTiming","ext.uls.compactlinks","ext.uls.interface","ext.checkUser.clientHints","wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=en&modules=codex-search-styles%7Cext.categoryTree.styles%7Cext.tmh.player.styles%7Cext.uls.pt%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cjquery.makeCollapsible.styles%7Cmediawiki.action.styles%7Cmediawiki.helplink%7Cmediawiki.page.gallery.styles%7Cskins.vector.styles.legacy%7Cwikibase.client.init&only=styles&skin=vector"> <script async="" src="/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=en&modules=ext.gadget.Long-Image-Names-in-Categories&only=styles&skin=vector"> <link rel="stylesheet" href="/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/1/13/Kulram.jpg"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="800"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/Kulram.jpg/800px-Kulram.jpg"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="533"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/Kulram.jpg/640px-Kulram.jpg"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="427"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="Category:Abacus - Wikimedia Commons"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//commons.m.wikimedia.org/wiki/Category:Abacus"> <link rel="alternate" type="application/x-wiki" title="Edit" href="/w/index.php?title=Category:Abacus&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/commons.png"> <link rel="icon" href="/static/favicon/commons.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikimedia Commons"> <link rel="EditURI" type="application/rsd+xml" href="//commons.wikimedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://commons.wikimedia.org/wiki/Category:Abacus"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/"> <link rel="alternate" type="application/atom+xml" title="Wikimedia Commons Atom feed" href="/w/index.php?title=Special:RecentChanges&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin-vector-legacy mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-14 ns-subject mw-editable page-Category_Abacus rootpage-Category_Abacus skin-vector action-view"><div id="mw-page-base" class="noprint"></div> <div id="mw-head-base" class="noprint"></div> <div id="content" class="mw-body" role="main"> <a id="top"></a> <div id="siteNotice"></div> <div class="mw-indicators"> <div id="mw-indicator-mw-helplink" class="mw-indicator"><a href="/wiki/Commons:Categories" target="_blank" class="mw-helplink"><span class="mw-helplink-icon"></span>Help</a></div> </div> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-namespace">Category</span><span class="mw-page-title-separator">:</span><span class="mw-page-title-main">Abacus</span></h1> <div id="bodyContent" class="vector-body"> <div id="siteSub" class="noprint">From Wikimedia Commons, the free media repository</div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="contentSub2"></div> <div id="jump-to-nav"></div> <a class="mw-jump-link" href="#mw-head">Jump to navigation</a> <a class="mw-jump-link" href="#searchInput">Jump to search</a> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r708806700">.mw-parser-output .on-wikipedia{display:table;margin:2px auto;background:#f8f9fa;color:#54595d;border:1px solid #a2a9b1;padding:2px .5em}.mw-parser-output .on-wikipedia.floatleft{clear:left;float:left}.mw-parser-output .on-wikipedia.floatright{clear:right;float:right}.mw-parser-output .on-wikipedia ul{display:inline}.mw-parser-output .on-wikipedia li{white-space:nowrap}.mw-parser-output .on-wikipedia li:not(.user-language) tt{font-weight:bolder}.mw-parser-output .on-wikipedia .editlink{font-size:smaller}.mw-parser-output .on-wikipedia span[lang]{unicode-bidi:embed}</style><div class="hlist on-wikipedia" lang="en" style=""><span typeof="mw:File"><span><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/16px-Wikipedia-logo-v2.svg.png" decoding="async" width="16" height="15" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/24px-Wikipedia-logo-v2.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/32px-Wikipedia-logo-v2.svg.png 2x" data-file-width="103" data-file-height="94" /></span></span> The article <b><bdi lang="">Abacus</bdi></b> on Wikipedia projects: <ul> <li class="user-language"><small>(<span style="font-family:monospace, monospace; title=">en</span>)</small> <span lang="en"><a href="https://en.wikipedia.org/wiki/Abacus" class="extiw" title="en:Abacus">Abacus</a></span></li> <br /> <li><small>(<span style="font-family:monospace, monospace; title=">af</span>)</small> <span lang="af"><a href="https://af.wikipedia.org/wiki/Abakus" class="extiw" title="af:Abakus">Abakus</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ar</span>)</small> <span lang="ar"><a href="https://ar.wikipedia.org/wiki/%D9%85%D8%B9%D8%AF%D8%A7%D8%AF" class="extiw" title="ar:معداد">معداد</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ay</span>)</small> <span lang="ay"><a href="https://ay.wikipedia.org/wiki/Jakhu%C3%B1a" class="extiw" title="ay:Jakhuña">Jakhuña</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">az</span>)</small> <span lang="az"><a href="https://az.wikipedia.org/wiki/Abak" class="extiw" title="az:Abak">Abak</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">be</span>)</small> <span lang="be"><a href="https://be.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA" class="extiw" title="be:Абак">Абак</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">be-tarask</span>)</small> <span lang="be-x-old"><a href="https://be-tarask.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA" class="extiw" title="be-tarask:Абак">Абак</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">bn</span>)</small> <span lang="bn"><a href="https://bn.wikipedia.org/wiki/%E0%A6%85%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%AC%E0%A6%BE%E0%A6%95%E0%A6%BE%E0%A6%B8" class="extiw" title="bn:অ্যাবাকাস">অ্যাবাকাস</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ca</span>)</small> <span lang="ca"><a href="https://ca.wikipedia.org/wiki/%C3%80bac" class="extiw" title="ca:Àbac">Àbac</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">cs</span>)</small> <span lang="cs"><a href="https://cs.wikipedia.org/wiki/Po%C4%8D%C3%ADtadlo" class="extiw" title="cs:Počítadlo">Počítadlo</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">cv</span>)</small> <span lang="cv"><a href="https://cv.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA_(%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B0)" class="extiw" title="cv:Абак (математика)">Абак (математика)</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">da</span>)</small> <span lang="da"><a href="https://da.wikipedia.org/wiki/Abacus_(regnemaskine)" class="extiw" title="da:Abacus (regnemaskine)">Abacus (regnemaskine)</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">de</span>)</small> <span lang="de"><a href="https://de.wikipedia.org/wiki/Abakus_(Rechenhilfsmittel)" class="extiw" title="de:Abakus (Rechenhilfsmittel)">Abakus (Rechenhilfsmittel)</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">el</span>)</small> <span lang="el"><a href="https://el.wikipedia.org/wiki/%CE%86%CE%B2%CE%B1%CE%BA%CE%B1%CF%82" class="extiw" title="el:Άβακας">Άβακας</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">eo</span>)</small> <span lang="eo"><a href="https://eo.wikipedia.org/wiki/Abako_(me%C4%A5anika_kalkulilo)" class="extiw" title="eo:Abako (meĥanika kalkulilo)">Abako (meĥanika kalkulilo)</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">es</span>)</small> <span lang="es"><a href="https://es.wikipedia.org/wiki/%C3%81baco" class="extiw" title="es:Ábaco">Ábaco</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">et</span>)</small> <span lang="et"><a href="https://et.wikipedia.org/wiki/Abakus" class="extiw" title="et:Abakus">Abakus</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">eu</span>)</small> <span lang="eu"><a href="https://eu.wikipedia.org/wiki/Abako" class="extiw" title="eu:Abako">Abako</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">fa</span>)</small> <span lang="fa"><a href="https://fa.wikipedia.org/wiki/%DA%86%D8%B1%D8%AA%DA%A9%D9%87" class="extiw" title="fa:چرتکه">چرتکه</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">fi</span>)</small> <span lang="fi"><a href="https://fi.wikipedia.org/wiki/Helmitaulu" class="extiw" title="fi:Helmitaulu">Helmitaulu</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">fr</span>)</small> <span lang="fr"><a href="https://fr.wikipedia.org/wiki/Boulier" class="extiw" title="fr:Boulier">Boulier</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">gan</span>)</small> <span lang="gan"><a href="https://gan.wikipedia.org/wiki/%E7%AE%97%E7%9B%A4" class="extiw" title="gan:算盤">算盤</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">gl</span>)</small> <span lang="gl"><a href="https://gl.wikipedia.org/wiki/%C3%81baco" class="extiw" title="gl:Ábaco">Ábaco</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">he</span>)</small> <span lang="he"><a href="https://he.wikipedia.org/wiki/%D7%97%D7%A9%D7%91%D7%95%D7%A0%D7%99%D7%99%D7%94" class="extiw" title="he:חשבונייה">חשבונייה</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">hi</span>)</small> <span lang="hi"><a href="https://hi.wikipedia.org/wiki/%E0%A4%97%E0%A4%BF%E0%A4%A8%E0%A4%A4%E0%A4%BE%E0%A4%B0%E0%A4%BE" class="extiw" title="hi:गिनतारा">गिनतारा</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">hr</span>)</small> <span lang="hr"><a href="https://hr.wikipedia.org/wiki/Abak" class="extiw" title="hr:Abak">Abak</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">hu</span>)</small> <span lang="hu"><a href="https://hu.wikipedia.org/wiki/Abakusz" class="extiw" title="hu:Abakusz">Abakusz</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ia</span>)</small> <span lang="ia"><a href="https://ia.wikipedia.org/wiki/Abaco" class="extiw" title="ia:Abaco">Abaco</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">id</span>)</small> <span lang="id"><a href="https://id.wikipedia.org/wiki/Sempoa" class="extiw" title="id:Sempoa">Sempoa</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">io</span>)</small> <span lang="io"><a href="https://io.wikipedia.org/wiki/Abako" class="extiw" title="io:Abako">Abako</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">it</span>)</small> <span lang="it"><a href="https://it.wikipedia.org/wiki/Abaco" class="extiw" title="it:Abaco">Abaco</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ja</span>)</small> <span lang="ja"><a href="https://ja.wikipedia.org/wiki/%E3%82%A2%E3%83%90%E3%82%AB%E3%82%B9" class="extiw" title="ja:アバカス">アバカス</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">jv</span>)</small> <span lang="jv"><a href="https://jv.wikipedia.org/wiki/Simpoa" class="extiw" title="jv:Simpoa">Simpoa</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">kk</span>)</small> <span lang="kk"><a href="https://kk.wikipedia.org/wiki/%D0%95%D1%81%D0%B5%D0%BF%D1%88%D0%BE%D1%82" class="extiw" title="kk:Есепшот">Есепшот</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">kn</span>)</small> <span lang="kn"><a href="https://kn.wikipedia.org/wiki/%E0%B2%85%E0%B2%AC%E0%B3%8D%E0%B2%AF%E0%B2%BE%E0%B2%95%E0%B2%B8%E0%B3%8D" class="extiw" title="kn:ಅಬ್ಯಾಕಸ್">ಅಬ್ಯಾಕಸ್</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ko</span>)</small> <span lang="ko"><a href="https://ko.wikipedia.org/wiki/%EC%88%98%ED%8C%90" class="extiw" title="ko:수판">수판</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ky</span>)</small> <span lang="ky"><a href="https://ky.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA_(%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B0)" class="extiw" title="ky:Абак (математика)">Абак (математика)</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">la</span>)</small> <span lang="la"><a href="https://la.wikipedia.org/wiki/Abacus" class="extiw" title="la:Abacus">Abacus</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">lo</span>)</small> <span lang="lo"><a href="https://lo.wikipedia.org/wiki/%E0%BA%A5%E0%BA%B9%E0%BA%81%E0%BA%84%E0%BA%B4%E0%BA%94" class="extiw" title="lo:ລູກຄິດ">ລູກຄິດ</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">lt</span>)</small> <span lang="lt"><a href="https://lt.wikipedia.org/wiki/Abakas" class="extiw" title="lt:Abakas">Abakas</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">lv</span>)</small> <span lang="lv"><a href="https://lv.wikipedia.org/wiki/Skait%C4%ABk%C4%BCi" class="extiw" title="lv:Skaitīkļi">Skaitīkļi</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">mk</span>)</small> <span lang="mk"><a href="https://mk.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA%D1%83%D1%81" class="extiw" title="mk:Абакус">Абакус</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ml</span>)</small> <span lang="ml"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AE%E0%B4%A3%E0%B4%BF%E0%B4%9A%E0%B5%8D%E0%B4%9A%E0%B4%9F%E0%B5%8D%E0%B4%9F%E0%B4%82" class="extiw" title="ml:മണിച്ചട്ടം">മണിച്ചട്ടം</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">mn</span>)</small> <span lang="mn"><a href="https://mn.wikipedia.org/wiki/%D0%A1%D0%B0%D0%BC%D0%BF%D0%B8%D0%BD" class="extiw" title="mn:Сампин">Сампин</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ms</span>)</small> <span lang="ms"><a href="https://ms.wikipedia.org/wiki/Sempoa" class="extiw" title="ms:Sempoa">Sempoa</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">mwl</span>)</small> <span lang="mwl"><a href="https://mwl.wikipedia.org/wiki/%C3%81baco" class="extiw" title="mwl:Ábaco">Ábaco</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">nah</span>)</small> <span lang="nah"><a href="https://nah.wikipedia.org/wiki/Nep%C5%8Dhualtzintzin" class="extiw" title="nah:Nepōhualtzintzin">Nepōhualtzintzin</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">nl</span>)</small> <span lang="nl"><a href="https://nl.wikipedia.org/wiki/Abacus_(rekentuig)" class="extiw" title="nl:Abacus (rekentuig)">Abacus (rekentuig)</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">nn</span>)</small> <span lang="nn"><a href="https://nn.wikipedia.org/wiki/Kuleramme" class="extiw" title="nn:Kuleramme">Kuleramme</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">no</span>)</small> <span lang="no"><a href="https://no.wikipedia.org/wiki/Abakus_(kuleramme)" class="extiw" title="no:Abakus (kuleramme)">Abakus (kuleramme)</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">pl</span>)</small> <span lang="pl"><a href="https://pl.wikipedia.org/wiki/Abakus_(liczyd%C5%82o)" class="extiw" title="pl:Abakus (liczydło)">Abakus (liczydło)</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">pms</span>)</small> <span lang="pms"><a href="https://pms.wikipedia.org/wiki/%C3%80baco" class="extiw" title="pms:Àbaco">Àbaco</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">pt</span>)</small> <span lang="pt"><a href="https://pt.wikipedia.org/wiki/%C3%81baco" class="extiw" title="pt:Ábaco">Ábaco</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ro</span>)</small> <span lang="ro"><a href="https://ro.wikipedia.org/wiki/Abac" class="extiw" title="ro:Abac">Abac</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ru</span>)</small> <span lang="ru"><a href="https://ru.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA" class="extiw" title="ru:Абак">Абак</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">scn</span>)</small> <span lang="scn"><a href="https://scn.wikipedia.org/wiki/Badduttuleri" class="extiw" title="scn:Badduttuleri">Badduttuleri</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">sd</span>)</small> <span lang="sd"><a href="https://sd.wikipedia.org/wiki/%DA%AA%D9%85%D9%BE%D9%8A%D9%88%D9%BD%D8%B1_%D8%AA%D8%B9%D8%A7%D8%B1%D9%81" class="extiw" title="sd:ڪمپيوٽر تعارف">ڪمپيوٽر تعارف</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">sh</span>)</small> <span lang="sh"><a href="https://sh.wikipedia.org/wiki/Abakus_(ra%C4%8Dunanje)" class="extiw" title="sh:Abakus (računanje)">Abakus (računanje)</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">simple</span>)</small> <span lang="en-x-simple"><a href="https://simple.wikipedia.org/wiki/Abacus" class="extiw" title="simple:Abacus">Abacus</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">sk</span>)</small> <span lang="sk"><a href="https://sk.wikipedia.org/wiki/Abakus_(po%C4%8D%C3%ADtacia_tabu%C4%BEka)" class="extiw" title="sk:Abakus (počítacia tabuľka)">Abakus (počítacia tabuľka)</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">sl</span>)</small> <span lang="sl"><a href="https://sl.wikipedia.org/wiki/Abak" class="extiw" title="sl:Abak">Abak</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">sr</span>)</small> <span lang="sr"><a href="https://sr.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA%D1%83%D1%81_(%D1%80%D0%B0%D1%87%D1%83%D0%BD%D0%B0%D1%9A%D0%B5)" class="extiw" title="sr:Абакус (рачунање)">Абакус (рачунање)</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">su</span>)</small> <span lang="su"><a href="https://su.wikipedia.org/wiki/Sipoah" class="extiw" title="su:Sipoah">Sipoah</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">sv</span>)</small> <span lang="sv"><a href="https://sv.wikipedia.org/wiki/Abakus" class="extiw" title="sv:Abakus">Abakus</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ta</span>)</small> <span lang="ta"><a href="https://ta.wikipedia.org/wiki/%E0%AE%8E%E0%AE%A3%E0%AF%8D%E0%AE%9A%E0%AE%9F%E0%AF%8D%E0%AE%9F%E0%AE%AE%E0%AF%8D" class="extiw" title="ta:எண்சட்டம்">எண்சட்டம்</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">th</span>)</small> <span lang="th"><a href="https://th.wikipedia.org/wiki/%E0%B8%A5%E0%B8%B9%E0%B8%81%E0%B8%84%E0%B8%B4%E0%B8%94" class="extiw" title="th:ลูกคิด">ลูกคิด</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">tl</span>)</small> <span lang="tl"><a href="https://tl.wikipedia.org/wiki/Abakus" class="extiw" title="tl:Abakus">Abakus</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">tr</span>)</small> <span lang="tr"><a href="https://tr.wikipedia.org/wiki/Abak%C3%BCs" class="extiw" title="tr:Abaküs">Abaküs</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">uk</span>)</small> <span lang="uk"><a href="https://uk.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA_(%D1%80%D0%B0%D1%85%D1%96%D0%B2%D0%BD%D0%B8%D1%86%D1%8F)" class="extiw" title="uk:Абак (рахівниця)">Абак (рахівниця)</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">ur</span>)</small> <span lang="ur"><a href="https://ur.wikipedia.org/wiki/%DA%AF%D9%86%D8%AA%D8%A7%D8%B1%D8%A7" class="extiw" title="ur:گنتارا">گنتارا</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">vi</span>)</small> <span lang="vi"><a href="https://vi.wikipedia.org/wiki/B%C3%A0n_t%C3%ADnh" class="extiw" title="vi:Bàn tính">Bàn tính</a></span></li> <li><small>(<span style="font-family:monospace, monospace; title=">zh</span>)</small> <span lang="zh"><a href="https://zh.wikipedia.org/wiki/%E7%AE%97%E7%9B%98" class="extiw" title="zh:算盘">算盘</a></span></li> <li class="editlink noprint plainlinks"><a class="external text" href="https://commons.wikimedia.org/w/index.php?title=Category:Abacus&action=edit">+/−</a></li></ul> </div> <style data-mw-deduplicate="TemplateStyles:r905765184">.mw-parser-output #wdinfobox[dir="ltr"]{float:right;clear:right;margin-right:0;margin-left:1em}.mw-parser-output #wdinfobox[dir="rtl"]{float:left;clear:left;margin-left:0;margin-right:1em}.mw-parser-output #wdinfobox{width:258px;box-sizing:border-box;font-size:95%;padding:0}.mw-parser-output #wdinfobox .image img{max-width:250px;max-height:250px;width:auto}.mw-parser-output #wdinfoboxcaption{background:#FFF}.mw-parser-output #wdinfobox[dir="ltr"] #wdinfoboxcaption{margin-left:0}.mw-parser-output #wdinfobox[dir="rtl"] #wdinfoboxcaption{margin-right:0}.mw-parser-output #wdinfobox th,.mw-parser-output #wdinfo_taxon th{vertical-align:top;word-wrap:break-word;hyphens:auto}.mw-parser-output #wdinfobox td,.mw-parser-output #wdinfo_taxon td{word-wrap:break-word;hyphens:auto}.mw-parser-output #wdinfobox li:not(:last-child){margin-bottom:3px}.mw-parser-output #wdinfo_taxon{font-size:95%;table-layout:fixed;padding:0}.mw-parser-output .taxontree-lcell,.mw-parser-output .wikidatainfobox-lcell{background:#CFE3FF;padding-left:.4em;padding-right:.4em;font-weight:bold}.mw-parser-output .taxontree-rcell,.mw-parser-output .wikidatainfobox-rcell{word-wrap:break-word;hyphens:auto}.mw-parser-output #wdinfobox[dir="ltr"] .taxontree-lcell,.mw-parser-output #wdinfobox[dir="ltr"] .wikidatainfobox-lcell{text-align:right;word-wrap:break-word;hyphens:auto}.mw-parser-output #wdinfobox[dir="rtl"] .taxontree-lcell,.mw-parser-output #wdinfobox[dir="rtl"] .wikidatainfobox-lcell{text-align:left;word-wrap:break-word;hyphens:auto}.mw-parser-output .taxontree-fullcell{text-align:center}.mw-parser-output .taxontree-hdrcell{text-align:center;background:#CFE3FF;padding-left:.4em;padding-right:.4em;font-weight:bold}.mw-parser-output .taxontree-row{}@media screen and (max-width:600px){.mw-parser-output .wdinfo_nomobile{display:none;visibility:hidden;height:0}}.mw-parser-output .wdinfobox_horizontal{clear:both!important;display:block;box-sizing:border-box!important;width:100%!important;column-width:24em}.mw-parser-output .wdinfobox_hide{display:none}.mw-parser-output #wdcreator{display:none}.mw-parser-output .wdcreator_show{display:block!important}.mw-parser-output #wdinfo_taxon ul{list-style:none;list-style-position:inside}.mw-parser-output #wdinfobox[dir="ltr"] #wdinfo_taxon ul{padding-left:0;margin-left:0}.mw-parser-output #wdinfobox[dir="rtl"] #wdinfo_taxon ul{padding-right:0;margin-right:0}.mw-parser-output .wikidatainfoboxVN ul li{list-style:none;padding:0;margin:0}.mw-parser-output .wikidatainfoboxVN ul{margin-left:0}.mw-parser-output .wikidatainfoboxVN{padding:0;margin:0}</style><div style="display:none"><nowiki>ábaco; nepōhualtzintzin; گِنتارٕ; sempoa; abakus; абак; abak; گنتارا; گنتارا; 算盤; abakus; takatātai; абак; абак; абак; abako; ລູກຄິດ; abak; есепшот; abako; сметалка; abakus; Abaco; অ্যাবাকাস; abaque; simpoa; abak; এবাকাছ; boulyé; počítadlo; ڪمپيوٽر تعارف; helmitaulu; چۊرتيکا; bàn tính; sipoah; skaitīkļi; abakus; абакус; abakus; abac; ábaco; abakus; сампин; kuleramme; abakus; abak; sempoa; àbac; 算盤; abakus; abacus; معداد; Abakus; abakos; ပေသီး; 算盤; абак; અબાકસ; अबाकस; abako; ଆବାକସ୍; abakus; абак; ลูกคิด; abacws; abakusz; абак; چرتکه; 算盘; abacus; აბაკი; アバカス; abaco; అబాకస్; jakhuña; abak; חשבונייה; abacus; abaküs; अबाकस; 算盘; ábaco; abakus; tèlraam; abacus; எண்சட்டம்; abaco; абак; աբակ; abacas; abakus; сампин; abakusi; ਅਬੈਕਸ; ក្បាច់គិតលេខ; àbaco; badduttuleri; ábaco; sǹg-pôaⁿ; چؤرتکه; i-abacus; abakas; abak; abakus; talnagrind; ábacu; abacus; abakasi; മണിച്ചട്ടം; abacus; ᱟᱵᱟᱠᱚᱥ; sáung-buàng; abachìn; 주판; ábaco; abaco; άβακας; ಅಬ್ಯಾಕಸ್; artefacto que sirve para efectuar operaciones aritméticas sencillas; számolóeszköz; ગણતરીનું એક સાધન; Reiknitól notað við samlagningu og frádrátt; доска, разделённая на полосы, по которым передвигались камешки или кости; применялась для арифметических вычислений в Древней Греции и Древнем Риме, затем в Западной Европе до XVIII века; mechanisches Rechenhilfsmittel; տախտակ; 世界各國的算盤; räkneredskap; Hesaplama aracı; アジアで使用される計算のための器具; räkneredskap; עזר חישוב מהתקופה העתיקה עד ימינו; गणना के उपकरण; గణనయంత్రం, లెక్కల బల్ల, పూసల చట్రం; 계산을 하기 위한 도구; পাটিগাণিতিক গণনা সম্পাদনৰ এটা প্ৰাচীন যন্ত্ৰ; starověká početní tabulka; antico strumento per effettuare i calcoli; হিসাবে সাহায্যকারী সরঞ্জাম; outil servant à calculer; лічыльная прылада; strummentu pi calculari; công cụ tính toán; alat hitung; mekanisk regnehjelpemiddel; rekentuig; ឧបករណ៍គណនាលេខ; laskemisväline; တွက်ချက်ရေးကိရိယာ; calculating tool; أداة حاسبة; Eina per al càlcul manual d'operacions aritmètiques.; ferramenta de cálculo; abaco; abacus; souan-pan; абакус; счёты; Stschoty; Rechentafel; աբակա; 计数器; suànpán; jìshùqì; sipoa; kuleramme; গাণনিক বাকচ; আবাকাছ; Kulram; गणना के फ्रेम; గణన చట్రం; Pallottoliere; Àbaco; Abachi; Abaco a polvere; Abaco a lapilli; Abbaco; counting frame; souan-pan; souanpan; suanpan; suan-p'an; suan-pan; àbbacu; baḍḍuttuleri; абакус; абак; abaks</nowiki></div><table id="wdinfobox" dir="ltr" class="fileinfotpl-type-information vevent infobox mw-collapsible"><caption class="fn org" id="wdinfoboxcaption"><b>abacus </b></caption><tbody><tr><td colspan="2" class="wdinfo_nomobile" style="text-align:center"><div>calculating tool</div><div class="switcher-container"><div class="center"><span class="wpImageAnnotatorControl wpImageAnnotatorCaptionOff"><span typeof="mw:File"><a href="/wiki/File:Kulram.jpg" class="mw-file-description"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/Kulram.jpg/230px-Kulram.jpg" decoding="async" width="230" height="153" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/Kulram.jpg/345px-Kulram.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/Kulram.jpg/460px-Kulram.jpg 2x" data-file-width="1200" data-file-height="800" /></a></span></span></div></div></td></tr><tr><td colspan="2" style="text-align:center"><b><a class="external text" href="https://commons.wikimedia.org/w/index.php?title=Special%3AUploadWizard&categories=Abacus">Upload media</a></b></td></tr><tr><td colspan="2" style="text-align:center; font-weight:bold"><div><span typeof="mw:File"><span><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/16px-Wikipedia-logo-v2.svg.png" decoding="async" width="16" height="15" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/24px-Wikipedia-logo-v2.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/32px-Wikipedia-logo-v2.svg.png 2x" data-file-width="103" data-file-height="94" /></span></span> <a href="https://en.wikipedia.org/wiki/Abacus" class="extiw" title="en:Abacus">Wikipedia</a></div><div><span typeof="mw:File"><span><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/16px-Wikibooks-logo.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/24px-Wikibooks-logo.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/32px-Wikibooks-logo.svg.png 2x" data-file-width="300" data-file-height="300" /></span></span> <a href="https://en.wikibooks.org/wiki/en:Using_an_Abacus" class="extiw" title="b:en:Using an Abacus">Wikibooks</a></div></td></tr><tr class="wdinfo_nomobile"><th class="wikidatainfobox-lcell">Subclass of</th><td><div class="plainlist"><ul><li><a href="/wiki/Category:Tools" title="Category:Tools">physical tool</a></li></ul></div></td></tr><tr class="wdinfo_nomobile"><th class="wikidatainfobox-lcell">Has use</th><td><div class="plainlist"><ul><li><a href="https://www.wikidata.org/wiki/Q48782649" class="extiw" title="d:Q48782649">Q48782649</a></li></ul></div></td></tr><tr><td colspan="2"><table style="width:100%" id="wdinfo_ac" class="mw-collapsible"><tbody><tr><th style="background: #cfe3ff">Authority file</th></tr><tr><td style="text-align: center;"><div style="overflow-wrap: break-word; font-size: smaller"><span typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q12806" title="d:Q12806"><img alt="Wikidata" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/20px-Wikidata-logo.svg.png" decoding="async" width="20" height="11" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/30px-Wikidata-logo.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/40px-Wikidata-logo.svg.png 2x" data-file-width="1050" data-file-height="590" /></a></span> <a href="https://www.wikidata.org/wiki/Q12806" class="extiw" title="d:Q12806">Q12806</a><br /><span class="wdinfo_nomobile"><span typeof="mw:File"><span><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Logo_Gemeinsame_Normdatei_%28GND%29.svg/18px-Logo_Gemeinsame_Normdatei_%28GND%29.svg.png" decoding="async" width="18" height="21" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Logo_Gemeinsame_Normdatei_%28GND%29.svg/27px-Logo_Gemeinsame_Normdatei_%28GND%29.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Logo_Gemeinsame_Normdatei_%28GND%29.svg/36px-Logo_Gemeinsame_Normdatei_%28GND%29.svg.png 2x" data-file-width="512" data-file-height="591" /></span></span> GND ID: <span><span><a rel="nofollow" class="external text" href="https://d-nb.info/gnd/4000030-8">4000030-8</a></span></span><br /><span typeof="mw:File"><span><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Library_of_Congress_favicon.png/18px-Library_of_Congress_favicon.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Library_of_Congress_favicon.png/27px-Library_of_Congress_favicon.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Library_of_Congress_favicon.png/36px-Library_of_Congress_favicon.png 2x" data-file-width="64" data-file-height="64" /></span></span> Library of Congress authority ID: <span><span><a rel="nofollow" class="external text" href="https://id.loc.gov/authorities/sh85000041">sh85000041</a></span></span><br /><span typeof="mw:File"><span><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Logo_BnF.svg/18px-Logo_BnF.svg.png" decoding="async" width="18" height="7" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Logo_BnF.svg/27px-Logo_BnF.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Logo_BnF.svg/36px-Logo_BnF.svg.png 2x" data-file-width="677" data-file-height="252" /></span></span> Bibliothèque nationale de France ID: <span><span><a rel="nofollow" class="external text" href="https://catalogue.bnf.fr/ark:/12148/cb11958604v">11958604v</a></span></span><br />BNCF Thesaurus ID: <span><span><a rel="nofollow" class="external text" href="https://thes.bncf.firenze.sbn.it/termine.php?id=51214">51214</a></span></span><br />NL CR AUT ID: <span><span><a rel="nofollow" class="external text" href="https://aleph.nkp.cz/F/?func=find-c&local_base=aut&ccl_term=ica=ph1086474">ph1086474</a></span></span><br />J9U ID: <span><span><a rel="nofollow" class="external text" href="http://olduli.nli.org.il/F/?func=find-b&local_base=NLX10&find_code=UID&request=987007292975705171">987007292975705171</a></span></span></span></div></td></tr><tr class="wdinfo_nomobile"><td colspan="2" style="text-align: center"><small><div class="hlist hlist-separated"><ul><li><span style="white-space:nowrap"><a class="external text" href="https://reasonator.toolforge.org/?q=Q12806">Reasonator</a></span></li><li><span style="white-space:nowrap"><a href="https://iw.toolforge.org/scholia/Q12806" class="extiw" title="toolforge:scholia/Q12806">Scholia</a></span></li><li><span style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://wikidocumentaries-demo.wmcloud.org/Q12806">Wikidocumentaries</a></span></li><li><span style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://petscan.wmflabs.org/?language=commons&categories=Abacus&project=wikimedia&ns%5B6%5D=1">PetScan</a></span></li><li><span style="white-space:nowrap"><a class="external text" href="https://glamtools.toolforge.org/glamorgan.html?&category=Abacus&depth=1&month=last">statistics</a></span></li><li><span style="white-space:nowrap"><a class="external text" href="https://wikimap.toolforge.org/?cat=Abacus&subcats=true&subcatdepth=1&cluster=true">WikiMap</a></span></li><li><span style="white-space:nowrap"><a class="external text" href="https://locator-tool.toolforge.org/#/geolocate?category=Abacus">Locator tool</a></span></li><li><span style="white-space:nowrap"><a class="external text" href="https://kmlexport.toolforge.org/?project=commons&article=Category%3AAbacus">KML file</a></span></li><li><a href="/wiki/Special:Search/haswbstatement:P180%3DQ12806" title="Special:Search/haswbstatement:P180=Q12806">Search depicted</a></li></ul></div></small></td></tr></tbody></table></td></tr><tr class="wdinfo_nomobile"><td lang="en" colspan="2" style="text-align:right"><span typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q12806" title="Edit infobox data on Wikidata"><img alt="Edit infobox data on Wikidata" src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/23px-Blue_pencil.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/30px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td></tr></tbody></table> <p>The <b><a href="https://en.wikipedia.org/wiki/Abacus" class="extiw" title="w:Abacus">abacus</a></b> (plural abaci or abacuses), also called a counting frame, is a calculating tool used primarily in parts of Asia for performing arithmetic processes. </p>    </div><div class="mw-category-generated" lang="en" dir="ltr"><div id="mw-subcategories"> <h2>Subcategories</h2> <p>This category has the following 12 subcategories, out of 12 total. </p><div lang="en" dir="ltr" class="mw-content-ltr"><div class="mw-category mw-category-columns"><div class="mw-category-group"><h3>A</h3> <ul><li><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeBullet"><a class="CategoryTreeToggle" data-ct-title="Abacus_in_art" aria-expanded="false"></a> </span> <bdi dir="ltr"><a href="/wiki/Category:Abacus_in_art" title="Category:Abacus in art">Abacus in art</a></bdi> <span title="Contains 2 subcategories, 0 pages, and 98 files" dir="ltr">(2 C, 98 F)</span></div><div class="CategoryTreeChildren" style="display:none"></div></div></li></ul></div><div class="mw-category-group"><h3>C</h3> <ul><li><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeBullet"><a class="CategoryTreeToggle" data-ct-title="Chinese_abacus" aria-expanded="false"></a> </span> <bdi dir="ltr"><a href="/wiki/Category:Chinese_abacus" title="Category:Chinese abacus">Chinese abacus</a></bdi> <span title="Contains 2 subcategories, 0 pages, and 111 files" dir="ltr">(2 C, 111 F)</span></div><div class="CategoryTreeChildren" style="display:none"></div></div></li></ul></div><div class="mw-category-group"><h3>G</h3> <ul><li><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeEmptyBullet"></span> <bdi dir="ltr"><a href="/wiki/Category:Gregor_Reisch_-_Margarita_Philosophica_-_Typus_Arithmeticae" title="Category:Gregor Reisch - Margarita Philosophica - Typus Arithmeticae">Gregor Reisch - Margarita Philosophica - Typus Arithmeticae</a></bdi> <span title="Contains 0 subcategories, 0 pages, and 7 files" dir="ltr">(7 F)</span></div><div class="CategoryTreeChildren" style="display:none"></div></div></li></ul></div><div class="mw-category-group"><h3>L</h3> <ul><li><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeEmptyBullet"></span> <bdi dir="ltr"><a href="/wiki/Category:Logical_abacus" title="Category:Logical abacus">Logical abacus</a></bdi> <span title="Contains 0 subcategories, 0 pages, and 4 files" dir="ltr">(4 F)</span></div><div class="CategoryTreeChildren" style="display:none"></div></div></li></ul></div><div class="mw-category-group"><h3>P</h3> <ul><li><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeBullet"><a class="CategoryTreeToggle" data-ct-title="People_with_abacus" aria-expanded="false"></a> </span> <bdi dir="ltr"><a href="/wiki/Category:People_with_abacus" title="Category:People with abacus">People with abacus</a></bdi> <span title="Contains 1 subcategory, 0 pages, and 22 files" dir="ltr">(1 C, 22 F)</span></div><div class="CategoryTreeChildren" style="display:none"></div></div></li></ul></div><div class="mw-category-group"><h3>R</h3> <ul><li><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeEmptyBullet"></span> <bdi dir="ltr"><a href="/wiki/Category:Abaci_in_the_Ridai_Museum_of_Modern_Science" title="Category:Abaci in the Ridai Museum of Modern Science">Abaci in the Ridai Museum of Modern Science</a></bdi> <span title="Contains 0 subcategories, 0 pages, and 20 files" dir="ltr">(20 F)</span></div><div class="CategoryTreeChildren" style="display:none"></div></div></li> <li><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeEmptyBullet"></span> <bdi dir="ltr"><a href="/wiki/Category:Roman_abacus" title="Category:Roman abacus">Roman abacus</a></bdi> <span title="Contains 0 subcategories, 0 pages, and 9 files" dir="ltr">(9 F)</span></div><div class="CategoryTreeChildren" style="display:none"></div></div></li> <li><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeBullet"><a class="CategoryTreeToggle" data-ct-title="Russian_abacus" aria-expanded="false"></a> </span> <bdi dir="ltr"><a href="/wiki/Category:Russian_abacus" title="Category:Russian abacus">Russian abacus</a></bdi> <span title="Contains 1 subcategory, 0 pages, and 30 files" dir="ltr">(1 C, 30 F)</span></div><div class="CategoryTreeChildren" style="display:none"></div></div></li></ul></div><div class="mw-category-group"><h3>S</h3> <ul><li><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeEmptyBullet"></span> <bdi dir="ltr"><a href="/wiki/Category:School_abacus" title="Category:School abacus">School abacus</a></bdi> <span title="Contains 0 subcategories, 0 pages, and 34 files" dir="ltr">(34 F)</span></div><div class="CategoryTreeChildren" style="display:none"></div></div></li> <li><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeBullet"><a class="CategoryTreeToggle" data-ct-title="Soroban" aria-expanded="false"></a> </span> <bdi dir="ltr"><a href="/wiki/Category:Soroban" title="Category:Soroban">Soroban</a></bdi> <span title="Contains 4 subcategories, 0 pages, and 76 files" dir="ltr">(4 C, 76 F)</span></div><div class="CategoryTreeChildren" style="display:none"></div></div></li> <li><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeEmptyBullet"></span> <bdi dir="ltr"><a href="/wiki/Category:SVG_abacus" title="Category:SVG abacus">SVG abacus</a></bdi> <span title="Contains 0 subcategories, 0 pages, and 72 files" dir="ltr">(72 F)</span></div><div class="CategoryTreeChildren" style="display:none"></div></div></li></ul></div><div class="mw-category-group"><h3>Y</h3> <ul><li><div class="CategoryTreeSection"><div class="CategoryTreeItem"><span class="CategoryTreeEmptyBullet"></span> <bdi dir="ltr"><a href="/wiki/Category:Yupana" title="Category:Yupana">Yupana</a></bdi> <span title="Contains 0 subcategories, 0 pages, and 15 files" dir="ltr">(15 F)</span></div><div class="CategoryTreeChildren" style="display:none"></div></div></li></ul></div></div></div> </div><div id="mw-pages"> <h2>Pages in category "Abacus"</h2> <p>This category contains only the following page. </p><div lang="en" dir="ltr" class="mw-content-ltr"><div class="mw-category"><div class="mw-category-group"><h3> </h3> <ul><li><a href="/wiki/Abacus" title="Abacus">Abacus</a></li></ul></div></div></div> </div><div id="mw-category-media"> <h2>Media in category "Abacus"</h2> <p>The following 152 files are in this category, out of 152 total. </p><ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:1340_Abacus_anagoria.JPG" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/1340_Abacus_anagoria.JPG/101px-1340_Abacus_anagoria.JPG" decoding="async" loading="lazy" width="101" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/1340_Abacus_anagoria.JPG/151px-1340_Abacus_anagoria.JPG 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/1340_Abacus_anagoria.JPG/201px-1340_Abacus_anagoria.JPG 2x" data-file-width="3048" data-file-height="3636" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:1340_Abacus_anagoria.JPG" class="galleryfilename galleryfilename-truncate" title="File:1340 Abacus anagoria.JPG">1340 Abacus anagoria.JPG</a> 3,048 × 3,636; 7.71 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:5th_bead_notation.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/5th_bead_notation.png/120px-5th_bead_notation.png" decoding="async" loading="lazy" width="120" height="115" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/5th_bead_notation.png/180px-5th_bead_notation.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/5th_bead_notation.png/240px-5th_bead_notation.png 2x" data-file-width="283" data-file-height="271" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:5th_bead_notation.png" class="galleryfilename galleryfilename-truncate" title="File:5th bead notation.png">5th bead notation.png</a> 283 × 271; 6 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Abacus_at_Soda_Hall_-_with_flash.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Abacus_at_Soda_Hall_-_with_flash.jpg/80px-Abacus_at_Soda_Hall_-_with_flash.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Abacus_at_Soda_Hall_-_with_flash.jpg/120px-Abacus_at_Soda_Hall_-_with_flash.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Abacus_at_Soda_Hall_-_with_flash.jpg/160px-Abacus_at_Soda_Hall_-_with_flash.jpg 2x" data-file-width="1674" data-file-height="2511" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Abacus_at_Soda_Hall_-_with_flash.jpg" class="galleryfilename galleryfilename-truncate" title="File:Abacus at Soda Hall - with flash.jpg">Abacus at Soda Hall - with flash.jpg</a> 1,674 × 2,511; 896 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Abacus_at_Soda_Hall_-_without_flash.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Abacus_at_Soda_Hall_-_without_flash.jpg/80px-Abacus_at_Soda_Hall_-_without_flash.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Abacus_at_Soda_Hall_-_without_flash.jpg/120px-Abacus_at_Soda_Hall_-_without_flash.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Abacus_at_Soda_Hall_-_without_flash.jpg/160px-Abacus_at_Soda_Hall_-_without_flash.jpg 2x" data-file-width="1729" data-file-height="2594" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Abacus_at_Soda_Hall_-_without_flash.jpg" class="galleryfilename galleryfilename-truncate" title="File:Abacus at Soda Hall - without flash.jpg">Abacus at Soda Hall - without flash.jpg</a> 1,729 × 2,594; 844 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Abacus_at_Soda_Hall,_UC_Berkeley.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Abacus_at_Soda_Hall%2C_UC_Berkeley.jpg/90px-Abacus_at_Soda_Hall%2C_UC_Berkeley.jpg" decoding="async" loading="lazy" width="90" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Abacus_at_Soda_Hall%2C_UC_Berkeley.jpg/135px-Abacus_at_Soda_Hall%2C_UC_Berkeley.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Abacus_at_Soda_Hall%2C_UC_Berkeley.jpg/180px-Abacus_at_Soda_Hall%2C_UC_Berkeley.jpg 2x" data-file-width="2448" data-file-height="3264" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Abacus_at_Soda_Hall,_UC_Berkeley.jpg" class="galleryfilename galleryfilename-truncate" title="File:Abacus at Soda Hall, UC Berkeley.jpg">Abacus at Soda Hall, UC Berkeley.jpg</a> 2,448 × 3,264; 2.99 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Abacus_Base_Five_Ten.PNG" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Abacus_Base_Five_Ten.PNG/120px-Abacus_Base_Five_Ten.PNG" decoding="async" loading="lazy" width="120" height="57" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Abacus_Base_Five_Ten.PNG/180px-Abacus_Base_Five_Ten.PNG 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Abacus_Base_Five_Ten.PNG/240px-Abacus_Base_Five_Ten.PNG 2x" data-file-width="517" data-file-height="246" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Abacus_Base_Five_Ten.PNG" class="galleryfilename galleryfilename-truncate" title="File:Abacus Base Five Ten.PNG">Abacus Base Five Ten.PNG</a> 517 × 246; 86 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Abacus_Display_at_the_Computer_History_Museum.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/39/Abacus_Display_at_the_Computer_History_Museum.jpg/120px-Abacus_Display_at_the_Computer_History_Museum.jpg" decoding="async" loading="lazy" width="120" height="67" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/3/39/Abacus_Display_at_the_Computer_History_Museum.jpg/180px-Abacus_Display_at_the_Computer_History_Museum.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/3/39/Abacus_Display_at_the_Computer_History_Museum.jpg/240px-Abacus_Display_at_the_Computer_History_Museum.jpg 2x" data-file-width="3145" data-file-height="1768" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Abacus_Display_at_the_Computer_History_Museum.jpg" class="galleryfilename galleryfilename-truncate" title="File:Abacus Display at the Computer History Museum.jpg">Abacus Display at the Computer History Museum.jpg</a> 3,145 × 1,768; 1.2 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Abacus_Inuit.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Abacus_Inuit.jpg/120px-Abacus_Inuit.jpg" decoding="async" loading="lazy" width="120" height="78" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Abacus_Inuit.jpg/180px-Abacus_Inuit.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/Abacus_Inuit.jpg/240px-Abacus_Inuit.jpg 2x" data-file-width="888" data-file-height="577" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Abacus_Inuit.jpg" class="galleryfilename galleryfilename-truncate" title="File:Abacus Inuit.jpg">Abacus Inuit.jpg</a> 888 × 577; 188 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Abacus_Kit.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Abacus_Kit.jpg/120px-Abacus_Kit.jpg" decoding="async" loading="lazy" width="120" height="54" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Abacus_Kit.jpg/180px-Abacus_Kit.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Abacus_Kit.jpg/240px-Abacus_Kit.jpg 2x" data-file-width="4096" data-file-height="1844" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Abacus_Kit.jpg" class="galleryfilename galleryfilename-truncate" title="File:Abacus Kit.jpg">Abacus Kit.jpg</a> 4,096 × 1,844; 2.12 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Abacus_Salamis-print.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Abacus_Salamis-print.jpg/54px-Abacus_Salamis-print.jpg" decoding="async" loading="lazy" width="54" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Abacus_Salamis-print.jpg/81px-Abacus_Salamis-print.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Abacus_Salamis-print.jpg/108px-Abacus_Salamis-print.jpg 2x" data-file-width="882" data-file-height="1953" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Abacus_Salamis-print.jpg" class="galleryfilename galleryfilename-truncate" title="File:Abacus Salamis-print.jpg">Abacus Salamis-print.jpg</a> 882 × 1,953; 166 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Abacus-604-small.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/ee/Abacus-604-small.png/120px-Abacus-604-small.png" decoding="async" loading="lazy" width="120" height="50" srcset="https://upload.wikimedia.org/wikipedia/commons/e/ee/Abacus-604-small.png 1.5x" data-file-width="164" data-file-height="69" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Abacus-604-small.png" class="galleryfilename galleryfilename-truncate" title="File:Abacus-604-small.png">Abacus-604-small.png</a> 164 × 69; 3 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Abacus123.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b2/Abacus123.jpg/120px-Abacus123.jpg" decoding="async" loading="lazy" width="120" height="90" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b2/Abacus123.jpg/180px-Abacus123.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/b/b2/Abacus123.jpg/240px-Abacus123.jpg 2x" data-file-width="3200" data-file-height="2400" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Abacus123.jpg" class="galleryfilename galleryfilename-truncate" title="File:Abacus123.jpg">Abacus123.jpg</a> 3,200 × 2,400; 932 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:AbacusBaseFiveTen.PNG" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/30/AbacusBaseFiveTen.PNG/120px-AbacusBaseFiveTen.PNG" decoding="async" loading="lazy" width="120" height="65" srcset="https://upload.wikimedia.org/wikipedia/commons/3/30/AbacusBaseFiveTen.PNG 1.5x" data-file-width="178" data-file-height="97" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:AbacusBaseFiveTen.PNG" class="galleryfilename galleryfilename-truncate" title="File:AbacusBaseFiveTen.PNG">AbacusBaseFiveTen.PNG</a> 178 × 97; 42 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:AbacusBeansFiveTen.PNG" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/68/AbacusBeansFiveTen.PNG/120px-AbacusBeansFiveTen.PNG" decoding="async" loading="lazy" width="120" height="66" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/68/AbacusBeansFiveTen.PNG/180px-AbacusBeansFiveTen.PNG 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/68/AbacusBeansFiveTen.PNG/240px-AbacusBeansFiveTen.PNG 2x" data-file-width="529" data-file-height="290" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:AbacusBeansFiveTen.PNG" class="galleryfilename galleryfilename-truncate" title="File:AbacusBeansFiveTen.PNG">AbacusBeansFiveTen.PNG</a> 529 × 290; 329 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><span><audio id="mwe_player_0" controls="" preload="none" data-mw-tmh="" width="120" style="width:120px;" data-durationhint="51" data-mwtitle="Abakus.ogg" data-mwprovider="local"><source src="https://upload.wikimedia.org/wikipedia/commons/e/e3/Abakus.ogg" type="audio/ogg; codecs="vorbis"" data-width="0" data-height="0"><source src="https://upload.wikimedia.org/wikipedia/commons/transcoded/e/e3/Abakus.ogg/Abakus.ogg.mp3" type="audio/mpeg" data-transcodekey="mp3" data-width="0" data-height="0"></audio></span></span></div> <div class="gallerytext"><a href="/wiki/File:Abakus.ogg" class="galleryfilename galleryfilename-truncate" title="File:Abakus.ogg">Abakus.ogg</a> 51 s; 764 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/ca/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/ca/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/ca/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 1.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 1.jpg</a> 1,832 × 2,748; 1.03 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_10.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_10.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_10.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_10.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_10.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_10.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_10.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_10.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 10.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 10.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_11.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c1/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_11.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_11.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c1/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_11.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_11.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/c1/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_11.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_11.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_11.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 11.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 11.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_12.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/54/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_12.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_12.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/54/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_12.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_12.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/54/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_12.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_12.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_12.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 12.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 12.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_13.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_13.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_13.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_13.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_13.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_13.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_13.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_13.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 13.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 13.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_14.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/31/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_14.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_14.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/3/31/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_14.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_14.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/3/31/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_14.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_14.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_14.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 14.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 14.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_15.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/bd/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_15.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_15.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/b/bd/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_15.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_15.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/b/bd/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_15.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_15.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_15.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 15.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 15.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_16.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_16.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_16.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_16.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_16.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_16.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_16.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_16.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 16.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 16.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_17.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_17.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_17.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_17.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_17.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_17.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_17.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_17.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 17.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 17.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_18.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_18.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_18.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_18.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_18.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_18.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_18.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_18.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 18.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 18.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_19.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/98/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_19.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_19.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/98/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_19.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_19.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/98/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_19.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_19.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_19.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 19.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 19.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_2.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_2.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_2.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_2.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_2.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_2.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_2.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_2.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 2.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 2.jpg</a> 1,832 × 2,748; 1.03 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_20.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_20.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_20.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_20.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_20.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_20.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_20.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_20.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 20.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 20.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_3.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/10/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_3.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_3.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/1/10/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_3.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_3.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/1/10/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_3.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_3.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_3.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 3.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 3.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_4.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/55/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_4.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_4.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/55/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_4.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_4.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/55/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_4.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_4.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_4.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 4.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 4.jpg</a> 1,832 × 2,748; 1 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_5.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_5.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_5.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_5.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_5.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_5.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_5.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_5.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 5.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 5.jpg</a> 1,832 × 2,748; 1,023 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_6.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_6.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_6.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_6.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_6.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_6.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_6.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_6.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 6.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 6.jpg</a> 1,832 × 2,748; 1,022 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_7.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_7.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_7.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_7.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_7.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_7.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_7.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_7.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 7.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 7.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_8.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_8.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_8.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_8.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_8.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_8.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_8.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_8.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 8.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 8.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_9.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_9.jpg/80px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_9.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_9.jpg/120px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_9.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_9.jpg/160px-Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_9.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_9.jpg" class="galleryfilename galleryfilename-truncate" title="File:Adding 123456789 to itself on abacus in left-to-right order - Step 9.jpg">Adding 123456789 to itself on abacus in left-to-right order - Step 9.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Addition_on_an_abacus.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e6/Addition_on_an_abacus.jpg/50px-Addition_on_an_abacus.jpg" decoding="async" loading="lazy" width="50" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e6/Addition_on_an_abacus.jpg/75px-Addition_on_an_abacus.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/e6/Addition_on_an_abacus.jpg/100px-Addition_on_an_abacus.jpg 2x" data-file-width="957" data-file-height="2283" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Addition_on_an_abacus.jpg" class="galleryfilename galleryfilename-truncate" title="File:Addition on an abacus.jpg">Addition on an abacus.jpg</a> 957 × 2,283; 123 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Albert_Einstein_caricature_by_Lou_Hirshman.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/16/Albert_Einstein_caricature_by_Lou_Hirshman.jpg/105px-Albert_Einstein_caricature_by_Lou_Hirshman.jpg" decoding="async" loading="lazy" width="105" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/1/16/Albert_Einstein_caricature_by_Lou_Hirshman.jpg/158px-Albert_Einstein_caricature_by_Lou_Hirshman.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/1/16/Albert_Einstein_caricature_by_Lou_Hirshman.jpg/211px-Albert_Einstein_caricature_by_Lou_Hirshman.jpg 2x" data-file-width="3517" data-file-height="4000" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Albert_Einstein_caricature_by_Lou_Hirshman.jpg" class="galleryfilename galleryfilename-truncate" title="File:Albert Einstein caricature by Lou Hirshman.jpg">Albert Einstein caricature by Lou Hirshman.jpg</a> 3,517 × 4,000; 9.72 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Algebra1_05_fig001.svg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/39/Algebra1_05_fig001.svg/120px-Algebra1_05_fig001.svg.png" decoding="async" loading="lazy" width="120" height="45" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/3/39/Algebra1_05_fig001.svg/180px-Algebra1_05_fig001.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/3/39/Algebra1_05_fig001.svg/240px-Algebra1_05_fig001.svg.png 2x" data-file-width="320" data-file-height="120" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Algebra1_05_fig001.svg" class="galleryfilename galleryfilename-truncate" title="File:Algebra1 05 fig001.svg">Algebra1 05 fig001.svg</a> 320 × 120; 121 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Algebra1_05_fig002.svg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/de/Algebra1_05_fig002.svg/120px-Algebra1_05_fig002.svg.png" decoding="async" loading="lazy" width="120" height="47" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/d/de/Algebra1_05_fig002.svg/180px-Algebra1_05_fig002.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/d/de/Algebra1_05_fig002.svg/240px-Algebra1_05_fig002.svg.png 2x" data-file-width="214" data-file-height="84" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Algebra1_05_fig002.svg" class="galleryfilename galleryfilename-truncate" title="File:Algebra1 05 fig002.svg">Algebra1 05 fig002.svg</a> 214 × 84; 43 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Algebra1_05_fig003.svg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Algebra1_05_fig003.svg/120px-Algebra1_05_fig003.svg.png" decoding="async" loading="lazy" width="120" height="47" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Algebra1_05_fig003.svg/180px-Algebra1_05_fig003.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Algebra1_05_fig003.svg/240px-Algebra1_05_fig003.svg.png 2x" data-file-width="214" data-file-height="84" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Algebra1_05_fig003.svg" class="galleryfilename galleryfilename-truncate" title="File:Algebra1 05 fig003.svg">Algebra1 05 fig003.svg</a> 214 × 84; 47 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:An_abacus.JPG" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/58/An_abacus.JPG/120px-An_abacus.JPG" decoding="async" loading="lazy" width="120" height="90" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/58/An_abacus.JPG/180px-An_abacus.JPG 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/58/An_abacus.JPG/240px-An_abacus.JPG 2x" data-file-width="2048" data-file-height="1536" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:An_abacus.JPG" class="galleryfilename galleryfilename-truncate" title="File:An abacus.JPG">An abacus.JPG</a> 2,048 × 1,536; 1.33 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Angled_view_of_Soda_Hall_abacus,_looking_upwards_(1).jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Angled_view_of_Soda_Hall_abacus%2C_looking_upwards_%281%29.jpg/120px-Angled_view_of_Soda_Hall_abacus%2C_looking_upwards_%281%29.jpg" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Angled_view_of_Soda_Hall_abacus%2C_looking_upwards_%281%29.jpg/180px-Angled_view_of_Soda_Hall_abacus%2C_looking_upwards_%281%29.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Angled_view_of_Soda_Hall_abacus%2C_looking_upwards_%281%29.jpg/240px-Angled_view_of_Soda_Hall_abacus%2C_looking_upwards_%281%29.jpg 2x" data-file-width="4288" data-file-height="2848" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Angled_view_of_Soda_Hall_abacus,_looking_upwards_(1).jpg" class="galleryfilename galleryfilename-truncate" title="File:Angled view of Soda Hall abacus, looking upwards (1).jpg">Angled view of Soda Hall abacus, looking upwards (1).jpg</a> 4,288 × 2,848; 3.43 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Angled_view_of_Soda_Hall_abacus,_looking_upwards_(2).jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Angled_view_of_Soda_Hall_abacus%2C_looking_upwards_%282%29.jpg/120px-Angled_view_of_Soda_Hall_abacus%2C_looking_upwards_%282%29.jpg" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Angled_view_of_Soda_Hall_abacus%2C_looking_upwards_%282%29.jpg/180px-Angled_view_of_Soda_Hall_abacus%2C_looking_upwards_%282%29.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Angled_view_of_Soda_Hall_abacus%2C_looking_upwards_%282%29.jpg/240px-Angled_view_of_Soda_Hall_abacus%2C_looking_upwards_%282%29.jpg 2x" data-file-width="4288" data-file-height="2848" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Angled_view_of_Soda_Hall_abacus,_looking_upwards_(2).jpg" class="galleryfilename galleryfilename-truncate" title="File:Angled view of Soda Hall abacus, looking upwards (2).jpg">Angled view of Soda Hall abacus, looking upwards (2).jpg</a> 4,288 × 2,848; 3.49 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Basic_about_computer.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Basic_about_computer.jpg/120px-Basic_about_computer.jpg" decoding="async" loading="lazy" width="120" height="117" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Basic_about_computer.jpg/180px-Basic_about_computer.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Basic_about_computer.jpg/240px-Basic_about_computer.jpg 2x" data-file-width="563" data-file-height="549" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Basic_about_computer.jpg" class="galleryfilename galleryfilename-truncate" title="File:Basic about computer.jpg">Basic about computer.jpg</a> 563 × 549; 116 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Bbinary_Abacus_002.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/55/Bbinary_Abacus_002.jpg/120px-Bbinary_Abacus_002.jpg" decoding="async" loading="lazy" width="120" height="90" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/55/Bbinary_Abacus_002.jpg/180px-Bbinary_Abacus_002.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/55/Bbinary_Abacus_002.jpg/240px-Bbinary_Abacus_002.jpg 2x" data-file-width="1600" data-file-height="1200" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Bbinary_Abacus_002.jpg" class="galleryfilename galleryfilename-truncate" title="File:Bbinary Abacus 002.jpg">Bbinary Abacus 002.jpg</a> 1,600 × 1,200; 1,007 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Bouier_soustraction.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Bouier_soustraction.png/120px-Bouier_soustraction.png" decoding="async" loading="lazy" width="120" height="96" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Bouier_soustraction.png/180px-Bouier_soustraction.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Bouier_soustraction.png/240px-Bouier_soustraction.png 2x" data-file-width="1280" data-file-height="1024" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Bouier_soustraction.png" class="galleryfilename galleryfilename-truncate" title="File:Bouier soustraction.png">Bouier soustraction.png</a> 1,280 × 1,024; 45 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Boulier_principe.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Boulier_principe.png/120px-Boulier_principe.png" decoding="async" loading="lazy" width="120" height="96" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Boulier_principe.png/180px-Boulier_principe.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Boulier_principe.png/240px-Boulier_principe.png 2x" data-file-width="1280" data-file-height="1024" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Boulier_principe.png" class="galleryfilename galleryfilename-truncate" title="File:Boulier principe.png">Boulier principe.png</a> 1,280 × 1,024; 34 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Cleared_Soda_Hall_abacus.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Cleared_Soda_Hall_abacus.jpg/80px-Cleared_Soda_Hall_abacus.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Cleared_Soda_Hall_abacus.jpg/120px-Cleared_Soda_Hall_abacus.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Cleared_Soda_Hall_abacus.jpg/160px-Cleared_Soda_Hall_abacus.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Cleared_Soda_Hall_abacus.jpg" class="galleryfilename galleryfilename-truncate" title="File:Cleared Soda Hall abacus.jpg">Cleared Soda Hall abacus.jpg</a> 1,832 × 2,748; 1.03 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Closeup_of_bead_on_rod_on_Soda_Hall_abacus.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Closeup_of_bead_on_rod_on_Soda_Hall_abacus.jpg/120px-Closeup_of_bead_on_rod_on_Soda_Hall_abacus.jpg" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Closeup_of_bead_on_rod_on_Soda_Hall_abacus.jpg/180px-Closeup_of_bead_on_rod_on_Soda_Hall_abacus.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Closeup_of_bead_on_rod_on_Soda_Hall_abacus.jpg/240px-Closeup_of_bead_on_rod_on_Soda_Hall_abacus.jpg 2x" data-file-width="4288" data-file-height="2848" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Closeup_of_bead_on_rod_on_Soda_Hall_abacus.jpg" class="galleryfilename galleryfilename-truncate" title="File:Closeup of bead on rod on Soda Hall abacus.jpg">Closeup of bead on rod on Soda Hall abacus.jpg</a> 4,288 × 2,848; 2.6 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Closeup_of_Soda_Hall_abacus_(1).jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Closeup_of_Soda_Hall_abacus_%281%29.jpg/120px-Closeup_of_Soda_Hall_abacus_%281%29.jpg" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Closeup_of_Soda_Hall_abacus_%281%29.jpg/180px-Closeup_of_Soda_Hall_abacus_%281%29.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Closeup_of_Soda_Hall_abacus_%281%29.jpg/240px-Closeup_of_Soda_Hall_abacus_%281%29.jpg 2x" data-file-width="4288" data-file-height="2848" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Closeup_of_Soda_Hall_abacus_(1).jpg" class="galleryfilename galleryfilename-truncate" title="File:Closeup of Soda Hall abacus (1).jpg">Closeup of Soda Hall abacus (1).jpg</a> 4,288 × 2,848; 3.65 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Closeup_of_Soda_Hall_abacus_(2).jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Closeup_of_Soda_Hall_abacus_%282%29.jpg/120px-Closeup_of_Soda_Hall_abacus_%282%29.jpg" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Closeup_of_Soda_Hall_abacus_%282%29.jpg/180px-Closeup_of_Soda_Hall_abacus_%282%29.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Closeup_of_Soda_Hall_abacus_%282%29.jpg/240px-Closeup_of_Soda_Hall_abacus_%282%29.jpg 2x" data-file-width="4288" data-file-height="2848" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Closeup_of_Soda_Hall_abacus_(2).jpg" class="galleryfilename galleryfilename-truncate" title="File:Closeup of Soda Hall abacus (2).jpg">Closeup of Soda Hall abacus (2).jpg</a> 4,288 × 2,848; 3.79 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Closeup_of_two_beads_against_crossbar_on_Soda_Hall_abacus.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Closeup_of_two_beads_against_crossbar_on_Soda_Hall_abacus.jpg/120px-Closeup_of_two_beads_against_crossbar_on_Soda_Hall_abacus.jpg" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Closeup_of_two_beads_against_crossbar_on_Soda_Hall_abacus.jpg/180px-Closeup_of_two_beads_against_crossbar_on_Soda_Hall_abacus.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Closeup_of_two_beads_against_crossbar_on_Soda_Hall_abacus.jpg/240px-Closeup_of_two_beads_against_crossbar_on_Soda_Hall_abacus.jpg 2x" data-file-width="4288" data-file-height="2848" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Closeup_of_two_beads_against_crossbar_on_Soda_Hall_abacus.jpg" class="galleryfilename galleryfilename-truncate" title="File:Closeup of two beads against crossbar on Soda Hall abacus.jpg">Closeup of two beads against crossbar on Soda Hall abacus.jpg</a> 4,288 × 2,848; 3.88 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Construction_d%E2%80%99un_abaque_virtuel_correspondant_%C3%A0_une_ailette_visco-plastique_du_moteur_Vulcain.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Construction_d%E2%80%99un_abaque_virtuel_correspondant_%C3%A0_une_ailette_visco-plastique_du_moteur_Vulcain.jpg/120px-Construction_d%E2%80%99un_abaque_virtuel_correspondant_%C3%A0_une_ailette_visco-plastique_du_moteur_Vulcain.jpg" decoding="async" loading="lazy" width="120" height="49" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Construction_d%E2%80%99un_abaque_virtuel_correspondant_%C3%A0_une_ailette_visco-plastique_du_moteur_Vulcain.jpg/180px-Construction_d%E2%80%99un_abaque_virtuel_correspondant_%C3%A0_une_ailette_visco-plastique_du_moteur_Vulcain.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Construction_d%E2%80%99un_abaque_virtuel_correspondant_%C3%A0_une_ailette_visco-plastique_du_moteur_Vulcain.jpg/240px-Construction_d%E2%80%99un_abaque_virtuel_correspondant_%C3%A0_une_ailette_visco-plastique_du_moteur_Vulcain.jpg 2x" data-file-width="1958" data-file-height="804" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Construction_d%E2%80%99un_abaque_virtuel_correspondant_%C3%A0_une_ailette_visco-plastique_du_moteur_Vulcain.jpg" class="galleryfilename galleryfilename-truncate" title="File:Construction d’un abaque virtuel correspondant à une ailette visco-plastique du moteur Vulcain.jpg">Construction d’un abaque virtuel correspondant à une ailette visco-plastique du moteur Vulcain.jpg</a> 1,958 × 804; 251 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Counting_board_with_calculi.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/93/Counting_board_with_calculi.jpg/109px-Counting_board_with_calculi.jpg" decoding="async" loading="lazy" width="109" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/93/Counting_board_with_calculi.jpg/164px-Counting_board_with_calculi.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/93/Counting_board_with_calculi.jpg/218px-Counting_board_with_calculi.jpg 2x" data-file-width="2130" data-file-height="2342" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Counting_board_with_calculi.jpg" class="galleryfilename galleryfilename-truncate" title="File:Counting board with calculi.jpg">Counting board with calculi.jpg</a> 2,130 × 2,342; 1.74 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Decorative_abacus.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/85/Decorative_abacus.jpg/120px-Decorative_abacus.jpg" decoding="async" loading="lazy" width="120" height="67" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/85/Decorative_abacus.jpg/180px-Decorative_abacus.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/85/Decorative_abacus.jpg/240px-Decorative_abacus.jpg 2x" data-file-width="3070" data-file-height="1725" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Decorative_abacus.jpg" class="galleryfilename galleryfilename-truncate" title="File:Decorative abacus.jpg">Decorative abacus.jpg</a> 3,070 × 1,725; 912 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:DHM_-_Abacus.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/DHM_-_Abacus.jpg/116px-DHM_-_Abacus.jpg" decoding="async" loading="lazy" width="116" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/DHM_-_Abacus.jpg/175px-DHM_-_Abacus.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/DHM_-_Abacus.jpg/233px-DHM_-_Abacus.jpg 2x" data-file-width="1680" data-file-height="1732" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:DHM_-_Abacus.jpg" class="galleryfilename galleryfilename-truncate" title="File:DHM - Abacus.jpg">DHM - Abacus.jpg</a> 1,680 × 1,732; 1.64 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_123456789_by_2.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Division_of_123456789_by_2.pdf/page1-85px-Division_of_123456789_by_2.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Division_of_123456789_by_2.pdf/page1-127px-Division_of_123456789_by_2.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Division_of_123456789_by_2.pdf/page1-170px-Division_of_123456789_by_2.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_123456789_by_2.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 123456789 by 2.pdf">Division of 123456789 by 2.pdf</a> 1,241 × 1,754, 4 pages; 51 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_123456789_by_3.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/94/Division_of_123456789_by_3.pdf/page1-85px-Division_of_123456789_by_3.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/94/Division_of_123456789_by_3.pdf/page1-127px-Division_of_123456789_by_3.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/94/Division_of_123456789_by_3.pdf/page1-170px-Division_of_123456789_by_3.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_123456789_by_3.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 123456789 by 3.pdf">Division of 123456789 by 3.pdf</a> 1,241 × 1,754, 4 pages; 50 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_123456789_by_4.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Division_of_123456789_by_4.pdf/page1-85px-Division_of_123456789_by_4.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Division_of_123456789_by_4.pdf/page1-127px-Division_of_123456789_by_4.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Division_of_123456789_by_4.pdf/page1-170px-Division_of_123456789_by_4.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_123456789_by_4.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 123456789 by 4.pdf">Division of 123456789 by 4.pdf</a> 1,241 × 1,754, 5 pages; 51 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_123456789_by_5.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Division_of_123456789_by_5.pdf/page1-85px-Division_of_123456789_by_5.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Division_of_123456789_by_5.pdf/page1-127px-Division_of_123456789_by_5.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Division_of_123456789_by_5.pdf/page1-170px-Division_of_123456789_by_5.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_123456789_by_5.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 123456789 by 5.pdf">Division of 123456789 by 5.pdf</a> 1,241 × 1,754, 4 pages; 48 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_123456789_by_6.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Division_of_123456789_by_6.pdf/page1-85px-Division_of_123456789_by_6.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Division_of_123456789_by_6.pdf/page1-127px-Division_of_123456789_by_6.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Division_of_123456789_by_6.pdf/page1-170px-Division_of_123456789_by_6.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_123456789_by_6.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 123456789 by 6.pdf">Division of 123456789 by 6.pdf</a> 1,241 × 1,754, 4 pages; 48 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_123456789_by_7.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Division_of_123456789_by_7.pdf/page1-85px-Division_of_123456789_by_7.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Division_of_123456789_by_7.pdf/page1-127px-Division_of_123456789_by_7.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Division_of_123456789_by_7.pdf/page1-170px-Division_of_123456789_by_7.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_123456789_by_7.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 123456789 by 7.pdf">Division of 123456789 by 7.pdf</a> 1,241 × 1,754, 4 pages; 50 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_123456789_by_8.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Division_of_123456789_by_8.pdf/page1-85px-Division_of_123456789_by_8.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Division_of_123456789_by_8.pdf/page1-127px-Division_of_123456789_by_8.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Division_of_123456789_by_8.pdf/page1-170px-Division_of_123456789_by_8.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_123456789_by_8.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 123456789 by 8.pdf">Division of 123456789 by 8.pdf</a> 1,241 × 1,754, 5 pages; 50 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_123456789_by_9.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Division_of_123456789_by_9.pdf/page1-85px-Division_of_123456789_by_9.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Division_of_123456789_by_9.pdf/page1-127px-Division_of_123456789_by_9.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Division_of_123456789_by_9.pdf/page1-170px-Division_of_123456789_by_9.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_123456789_by_9.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 123456789 by 9.pdf">Division of 123456789 by 9.pdf</a> 1,241 × 1,754, 4 pages; 54 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_412_by_896.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Division_of_412_by_896.pdf/page1-85px-Division_of_412_by_896.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Division_of_412_by_896.pdf/page1-127px-Division_of_412_by_896.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Division_of_412_by_896.pdf/page1-170px-Division_of_412_by_896.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_412_by_896.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 412 by 896.pdf">Division of 412 by 896.pdf</a> 1,241 × 1,754, 8 pages; 60 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_888122_by_898.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Division_of_888122_by_898.pdf/page1-85px-Division_of_888122_by_898.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Division_of_888122_by_898.pdf/page1-127px-Division_of_888122_by_898.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Division_of_888122_by_898.pdf/page1-170px-Division_of_888122_by_898.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_888122_by_898.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 888122 by 898.pdf">Division of 888122 by 898.pdf</a> 1,241 × 1,754, 3 pages; 45 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_888122_by_989.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Division_of_888122_by_989.pdf/page1-85px-Division_of_888122_by_989.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Division_of_888122_by_989.pdf/page1-127px-Division_of_888122_by_989.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Division_of_888122_by_989.pdf/page1-170px-Division_of_888122_by_989.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_888122_by_989.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 888122 by 989.pdf">Division of 888122 by 989.pdf</a> 1,241 × 1,754, 3 pages; 55 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_998001_by_999_on_a_5%2B1_abacus.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Division_of_998001_by_999_on_a_5%2B1_abacus.pdf/page1-85px-Division_of_998001_by_999_on_a_5%2B1_abacus.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Division_of_998001_by_999_on_a_5%2B1_abacus.pdf/page1-127px-Division_of_998001_by_999_on_a_5%2B1_abacus.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Division_of_998001_by_999_on_a_5%2B1_abacus.pdf/page1-170px-Division_of_998001_by_999_on_a_5%2B1_abacus.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_998001_by_999_on_a_5%2B1_abacus.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 998001 by 999 on a 5+1 abacus.pdf">Division of 998001 by 999 on a 5+1 abacus.pdf</a> 1,241 × 1,754, 3 pages; 50 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_998001_by_999_on_a_5%2B3_abacus.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Division_of_998001_by_999_on_a_5%2B3_abacus.pdf/page1-85px-Division_of_998001_by_999_on_a_5%2B3_abacus.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Division_of_998001_by_999_on_a_5%2B3_abacus.pdf/page1-127px-Division_of_998001_by_999_on_a_5%2B3_abacus.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Division_of_998001_by_999_on_a_5%2B3_abacus.pdf/page1-170px-Division_of_998001_by_999_on_a_5%2B3_abacus.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_998001_by_999_on_a_5%2B3_abacus.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 998001 by 999 on a 5+3 abacus.pdf">Division of 998001 by 999 on a 5+3 abacus.pdf</a> 1,241 × 1,754, 3 pages; 50 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Division_of_998001_by_999.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Division_of_998001_by_999.pdf/page1-85px-Division_of_998001_by_999.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Division_of_998001_by_999.pdf/page1-127px-Division_of_998001_by_999.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Division_of_998001_by_999.pdf/page1-170px-Division_of_998001_by_999.pdf.jpg 2x" data-file-width="1241" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Division_of_998001_by_999.pdf" class="galleryfilename galleryfilename-truncate" title="File:Division of 998001 by 999.pdf">Division of 998001 by 999.pdf</a> 1,241 × 1,754, 3 pages; 48 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:DSC_0184_Rechenbrett_1_Dieter_Schuh.JPG" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/DSC_0184_Rechenbrett_1_Dieter_Schuh.JPG/120px-DSC_0184_Rechenbrett_1_Dieter_Schuh.JPG" decoding="async" loading="lazy" width="120" height="58" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/DSC_0184_Rechenbrett_1_Dieter_Schuh.JPG/180px-DSC_0184_Rechenbrett_1_Dieter_Schuh.JPG 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/DSC_0184_Rechenbrett_1_Dieter_Schuh.JPG/240px-DSC_0184_Rechenbrett_1_Dieter_Schuh.JPG 2x" data-file-width="1981" data-file-height="958" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:DSC_0184_Rechenbrett_1_Dieter_Schuh.JPG" class="galleryfilename galleryfilename-truncate" title="File:DSC 0184 Rechenbrett 1 Dieter Schuh.JPG">DSC 0184 Rechenbrett 1 Dieter Schuh.JPG</a> 1,981 × 958; 818 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:DSC_0185_Rechenbrett_2_Dieter_Schuh.JPG" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/14/DSC_0185_Rechenbrett_2_Dieter_Schuh.JPG/120px-DSC_0185_Rechenbrett_2_Dieter_Schuh.JPG" decoding="async" loading="lazy" width="120" height="63" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/1/14/DSC_0185_Rechenbrett_2_Dieter_Schuh.JPG/180px-DSC_0185_Rechenbrett_2_Dieter_Schuh.JPG 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/1/14/DSC_0185_Rechenbrett_2_Dieter_Schuh.JPG/240px-DSC_0185_Rechenbrett_2_Dieter_Schuh.JPG 2x" data-file-width="1500" data-file-height="785" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:DSC_0185_Rechenbrett_2_Dieter_Schuh.JPG" class="galleryfilename galleryfilename-truncate" title="File:DSC 0185 Rechenbrett 2 Dieter Schuh.JPG">DSC 0185 Rechenbrett 2 Dieter Schuh.JPG</a> 1,500 × 785; 572 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:European_abacus.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/European_abacus.jpg/120px-European_abacus.jpg" decoding="async" loading="lazy" width="120" height="73" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/European_abacus.jpg/180px-European_abacus.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/European_abacus.jpg/240px-European_abacus.jpg 2x" data-file-width="1000" data-file-height="610" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:European_abacus.jpg" class="galleryfilename galleryfilename-truncate" title="File:European abacus.jpg">European abacus.jpg</a> 1,000 × 610; 140 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Exposici%C3%B3n_%27%C3%89rase_una_vez..._la_inform%C3%A1tica._Del_%C3%A1baco_a_la_smart_city_en_vi%C3%B1etas_y_m%C3%A1s%27_2.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/Exposici%C3%B3n_%27%C3%89rase_una_vez..._la_inform%C3%A1tica._Del_%C3%A1baco_a_la_smart_city_en_vi%C3%B1etas_y_m%C3%A1s%27_2.jpg/120px-Exposici%C3%B3n_%27%C3%89rase_una_vez..._la_inform%C3%A1tica._Del_%C3%A1baco_a_la_smart_city_en_vi%C3%B1etas_y_m%C3%A1s%27_2.jpg" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/Exposici%C3%B3n_%27%C3%89rase_una_vez..._la_inform%C3%A1tica._Del_%C3%A1baco_a_la_smart_city_en_vi%C3%B1etas_y_m%C3%A1s%27_2.jpg/180px-Exposici%C3%B3n_%27%C3%89rase_una_vez..._la_inform%C3%A1tica._Del_%C3%A1baco_a_la_smart_city_en_vi%C3%B1etas_y_m%C3%A1s%27_2.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/Exposici%C3%B3n_%27%C3%89rase_una_vez..._la_inform%C3%A1tica._Del_%C3%A1baco_a_la_smart_city_en_vi%C3%B1etas_y_m%C3%A1s%27_2.jpg/240px-Exposici%C3%B3n_%27%C3%89rase_una_vez..._la_inform%C3%A1tica._Del_%C3%A1baco_a_la_smart_city_en_vi%C3%B1etas_y_m%C3%A1s%27_2.jpg 2x" data-file-width="3456" data-file-height="2304" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Exposici%C3%B3n_%27%C3%89rase_una_vez..._la_inform%C3%A1tica._Del_%C3%A1baco_a_la_smart_city_en_vi%C3%B1etas_y_m%C3%A1s%27_2.jpg" class="galleryfilename galleryfilename-truncate" title="File:Exposición 'Érase una vez... la informática. Del ábaco a la smart city en viñetas y más' 2.jpg">Exposición 'Érase una vez... la informática. Del ábaco a la smart city en viñetas y más' 2.jpg</a> 3,456 × 2,304; 649 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Gyantse_Museum_finance_official.JPG" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Gyantse_Museum_finance_official.JPG/120px-Gyantse_Museum_finance_official.JPG" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Gyantse_Museum_finance_official.JPG/180px-Gyantse_Museum_finance_official.JPG 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Gyantse_Museum_finance_official.JPG/240px-Gyantse_Museum_finance_official.JPG 2x" data-file-width="3008" data-file-height="2000" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Gyantse_Museum_finance_official.JPG" class="galleryfilename galleryfilename-truncate" title="File:Gyantse Museum finance official.JPG">Gyantse Museum finance official.JPG</a> 3,008 × 2,000; 2.92 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:History_of_math3.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/9b/History_of_math3.jpg/120px-History_of_math3.jpg" decoding="async" loading="lazy" width="120" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/9b/History_of_math3.jpg/180px-History_of_math3.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/9b/History_of_math3.jpg/240px-History_of_math3.jpg 2x" data-file-width="400" data-file-height="400" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:History_of_math3.jpg" class="galleryfilename galleryfilename-truncate" title="File:History of math3.jpg">History of math3.jpg</a> 400 × 400; 188 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Indian_Abacus_.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Indian_Abacus_.jpg/120px-Indian_Abacus_.jpg" decoding="async" loading="lazy" width="120" height="90" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Indian_Abacus_.jpg/180px-Indian_Abacus_.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Indian_Abacus_.jpg/240px-Indian_Abacus_.jpg 2x" data-file-width="3264" data-file-height="2448" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Indian_Abacus_.jpg" class="galleryfilename galleryfilename-truncate" title="File:Indian Abacus .jpg">Indian Abacus .jpg</a> 3,264 × 2,448; 2.53 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Math_Genius_World_Records_and_Awards.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Math_Genius_World_Records_and_Awards.jpg/120px-Math_Genius_World_Records_and_Awards.jpg" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Math_Genius_World_Records_and_Awards.jpg/180px-Math_Genius_World_Records_and_Awards.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Math_Genius_World_Records_and_Awards.jpg/240px-Math_Genius_World_Records_and_Awards.jpg 2x" data-file-width="2700" data-file-height="1800" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Math_Genius_World_Records_and_Awards.jpg" class="galleryfilename galleryfilename-truncate" title="File:Math Genius World Records and Awards.jpg">Math Genius World Records and Awards.jpg</a> 2,700 × 1,800; 225 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Me_adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Me_adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg/80px-Me_adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Me_adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg/120px-Me_adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Me_adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg/160px-Me_adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Me_adding_123456789_to_itself_on_abacus_in_left-to-right_order_-_Step_1.jpg" class="galleryfilename galleryfilename-truncate" title="File:Me adding 123456789 to itself on abacus in left-to-right order - Step 1.jpg">Me adding 123456789 to itself on abacus in left-to-right order - Step 1.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_1.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_1.jpg/80px-Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_1.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_1.jpg/120px-Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_1.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_1.jpg/160px-Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_1.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_1.jpg" class="galleryfilename galleryfilename-truncate" title="File:Me adding 123456789 to itself on abacus in right-to-left order - Step 1.jpg">Me adding 123456789 to itself on abacus in right-to-left order - Step 1.jpg</a> 1,832 × 2,748; 1.03 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_19.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_19.jpg/80px-Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_19.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_19.jpg/120px-Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_19.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_19.jpg/160px-Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_19.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Me_adding_123456789_to_itself_on_abacus_in_right-to-left_order_-_Step_19.jpg" class="galleryfilename galleryfilename-truncate" title="File:Me adding 123456789 to itself on abacus in right-to-left order - Step 19.jpg">Me adding 123456789 to itself on abacus in right-to-left order - Step 19.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Museum_of_Business_History_and_Technology_(31308125464).jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Museum_of_Business_History_and_Technology_%2831308125464%29.jpg/120px-Museum_of_Business_History_and_Technology_%2831308125464%29.jpg" decoding="async" loading="lazy" width="120" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Museum_of_Business_History_and_Technology_%2831308125464%29.jpg/180px-Museum_of_Business_History_and_Technology_%2831308125464%29.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Museum_of_Business_History_and_Technology_%2831308125464%29.jpg/240px-Museum_of_Business_History_and_Technology_%2831308125464%29.jpg 2x" data-file-width="3024" data-file-height="3024" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Museum_of_Business_History_and_Technology_(31308125464).jpg" class="galleryfilename galleryfilename-truncate" title="File:Museum of Business History and Technology (31308125464).jpg">Museum of Business History and Technology (31308125464).jpg</a> 3,024 × 3,024; 1.29 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Napiersche_Rechenst%C3%A4be_mit_Abakus.JPG" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d3/Napiersche_Rechenst%C3%A4be_mit_Abakus.JPG/120px-Napiersche_Rechenst%C3%A4be_mit_Abakus.JPG" decoding="async" loading="lazy" width="120" height="81" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d3/Napiersche_Rechenst%C3%A4be_mit_Abakus.JPG/180px-Napiersche_Rechenst%C3%A4be_mit_Abakus.JPG 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/d/d3/Napiersche_Rechenst%C3%A4be_mit_Abakus.JPG/240px-Napiersche_Rechenst%C3%A4be_mit_Abakus.JPG 2x" data-file-width="2322" data-file-height="1569" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Napiersche_Rechenst%C3%A4be_mit_Abakus.JPG" class="galleryfilename galleryfilename-truncate" title="File:Napiersche Rechenstäbe mit Abakus.JPG">Napiersche Rechenstäbe mit Abakus.JPG</a> 2,322 × 1,569; 924 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><span><audio id="mwe_player_1" controls="" preload="none" data-mw-tmh="" width="120" style="width:120px;" data-durationhint="2" data-mwtitle="Nl-telraam.ogg" data-mwprovider="local"><source src="https://upload.wikimedia.org/wikipedia/commons/1/1c/Nl-telraam.ogg" type="audio/ogg; codecs="vorbis"" data-width="0" data-height="0"><source src="https://upload.wikimedia.org/wikipedia/commons/transcoded/1/1c/Nl-telraam.ogg/Nl-telraam.ogg.mp3" type="audio/mpeg" data-transcodekey="mp3" data-width="0" data-height="0"></audio></span></span></div> <div class="gallerytext"><a href="/wiki/File:Nl-telraam.ogg" class="galleryfilename galleryfilename-truncate" title="File:Nl-telraam.ogg">Nl-telraam.ogg</a> 1.5 s; 18 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Opt1.gif" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Opt1.gif/120px-Opt1.gif" decoding="async" loading="lazy" width="120" height="93" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Opt1.gif/180px-Opt1.gif 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Opt1.gif/240px-Opt1.gif 2x" data-file-width="609" data-file-height="470" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Opt1.gif" class="galleryfilename galleryfilename-truncate" title="File:Opt1.gif">Opt1.gif</a> 609 × 470; 8 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Pallottoliere.svg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Pallottoliere.svg/120px-Pallottoliere.svg.png" decoding="async" loading="lazy" width="120" height="55" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Pallottoliere.svg/180px-Pallottoliere.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Pallottoliere.svg/240px-Pallottoliere.svg.png 2x" data-file-width="250" data-file-height="114" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Pallottoliere.svg" class="galleryfilename galleryfilename-truncate" title="File:Pallottoliere.svg">Pallottoliere.svg</a> 250 × 114; 3.17 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Panzhu_Suanfa_addition_diagrams.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Panzhu_Suanfa_addition_diagrams.png/120px-Panzhu_Suanfa_addition_diagrams.png" decoding="async" loading="lazy" width="120" height="112" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Panzhu_Suanfa_addition_diagrams.png/180px-Panzhu_Suanfa_addition_diagrams.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Panzhu_Suanfa_addition_diagrams.png/240px-Panzhu_Suanfa_addition_diagrams.png 2x" data-file-width="820" data-file-height="767" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Panzhu_Suanfa_addition_diagrams.png" class="galleryfilename galleryfilename-truncate" title="File:Panzhu Suanfa addition diagrams.png">Panzhu Suanfa addition diagrams.png</a> 820 × 767; 50 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Panzhu_Suanfa_addition.gif" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Panzhu_Suanfa_addition.gif/120px-Panzhu_Suanfa_addition.gif" decoding="async" loading="lazy" width="120" height="76" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Panzhu_Suanfa_addition.gif/180px-Panzhu_Suanfa_addition.gif 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Panzhu_Suanfa_addition.gif/240px-Panzhu_Suanfa_addition.gif 2x" data-file-width="445" data-file-height="280" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Panzhu_Suanfa_addition.gif" class="galleryfilename galleryfilename-truncate" title="File:Panzhu Suanfa addition.gif">Panzhu Suanfa addition.gif</a> 445 × 280; 2.32 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Panzhu_Suanfa_subtraction_diagrams.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/Panzhu_Suanfa_subtraction_diagrams.png/120px-Panzhu_Suanfa_subtraction_diagrams.png" decoding="async" loading="lazy" width="120" height="115" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/Panzhu_Suanfa_subtraction_diagrams.png/180px-Panzhu_Suanfa_subtraction_diagrams.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/Panzhu_Suanfa_subtraction_diagrams.png/240px-Panzhu_Suanfa_subtraction_diagrams.png 2x" data-file-width="814" data-file-height="778" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Panzhu_Suanfa_subtraction_diagrams.png" class="galleryfilename galleryfilename-truncate" title="File:Panzhu Suanfa subtraction diagrams.png">Panzhu Suanfa subtraction diagrams.png</a> 814 × 778; 50 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Panzhu_Suanfa_subtraction.gif" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Panzhu_Suanfa_subtraction.gif/120px-Panzhu_Suanfa_subtraction.gif" decoding="async" loading="lazy" width="120" height="76" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Panzhu_Suanfa_subtraction.gif/180px-Panzhu_Suanfa_subtraction.gif 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Panzhu_Suanfa_subtraction.gif/240px-Panzhu_Suanfa_subtraction.gif 2x" data-file-width="445" data-file-height="280" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Panzhu_Suanfa_subtraction.gif" class="galleryfilename galleryfilename-truncate" title="File:Panzhu Suanfa subtraction.gif">Panzhu Suanfa subtraction.gif</a> 445 × 280; 2.25 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Pellos,_Francesco_%E2%80%93_Compendio_de_lo_abaco,_1492_%E2%80%93_BEIC_146377.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Pellos%2C_Francesco_%E2%80%93_Compendio_de_lo_abaco%2C_1492_%E2%80%93_BEIC_146377.jpg/76px-Pellos%2C_Francesco_%E2%80%93_Compendio_de_lo_abaco%2C_1492_%E2%80%93_BEIC_146377.jpg" decoding="async" loading="lazy" width="76" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Pellos%2C_Francesco_%E2%80%93_Compendio_de_lo_abaco%2C_1492_%E2%80%93_BEIC_146377.jpg/115px-Pellos%2C_Francesco_%E2%80%93_Compendio_de_lo_abaco%2C_1492_%E2%80%93_BEIC_146377.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Pellos%2C_Francesco_%E2%80%93_Compendio_de_lo_abaco%2C_1492_%E2%80%93_BEIC_146377.jpg/153px-Pellos%2C_Francesco_%E2%80%93_Compendio_de_lo_abaco%2C_1492_%E2%80%93_BEIC_146377.jpg 2x" data-file-width="714" data-file-height="1120" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Pellos,_Francesco_%E2%80%93_Compendio_de_lo_abaco,_1492_%E2%80%93_BEIC_146377.jpg" class="galleryfilename galleryfilename-truncate" title="File:Pellos, Francesco – Compendio de lo abaco, 1492 – BEIC 146377.jpg">Pellos, Francesco – Compendio de lo abaco, 1492 – BEIC 146377.jpg</a> 714 × 1,120; 261 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Pier_maria_calandri,_trattato_d%27abacho,_xv_sec.,_biblioteca_laurenziana_ashb_359_c._206v.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Pier_maria_calandri%2C_trattato_d%27abacho%2C_xv_sec.%2C_biblioteca_laurenziana_ashb_359_c._206v.jpg/92px-Pier_maria_calandri%2C_trattato_d%27abacho%2C_xv_sec.%2C_biblioteca_laurenziana_ashb_359_c._206v.jpg" decoding="async" loading="lazy" width="92" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Pier_maria_calandri%2C_trattato_d%27abacho%2C_xv_sec.%2C_biblioteca_laurenziana_ashb_359_c._206v.jpg/138px-Pier_maria_calandri%2C_trattato_d%27abacho%2C_xv_sec.%2C_biblioteca_laurenziana_ashb_359_c._206v.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Pier_maria_calandri%2C_trattato_d%27abacho%2C_xv_sec.%2C_biblioteca_laurenziana_ashb_359_c._206v.jpg/184px-Pier_maria_calandri%2C_trattato_d%27abacho%2C_xv_sec.%2C_biblioteca_laurenziana_ashb_359_c._206v.jpg 2x" data-file-width="756" data-file-height="984" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Pier_maria_calandri,_trattato_d%27abacho,_xv_sec.,_biblioteca_laurenziana_ashb_359_c._206v.jpg" class="galleryfilename galleryfilename-truncate" title="File:Pier maria calandri, trattato d'abacho, xv sec., biblioteca laurenziana ashb 359 c. 206v.jpg">Pier maria calandri, trattato d'abacho, xv sec., biblioteca laurenziana ashb 359 c. 206v.jpg</a> 756 × 984; 514 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Roscheider_Hof_BW_2024-02-10_12-03-25.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Roscheider_Hof_BW_2024-02-10_12-03-25.jpg/79px-Roscheider_Hof_BW_2024-02-10_12-03-25.jpg" decoding="async" loading="lazy" width="79" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Roscheider_Hof_BW_2024-02-10_12-03-25.jpg/119px-Roscheider_Hof_BW_2024-02-10_12-03-25.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Roscheider_Hof_BW_2024-02-10_12-03-25.jpg/159px-Roscheider_Hof_BW_2024-02-10_12-03-25.jpg 2x" data-file-width="3986" data-file-height="6008" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Roscheider_Hof_BW_2024-02-10_12-03-25.jpg" class="galleryfilename galleryfilename-truncate" title="File:Roscheider Hof BW 2024-02-10 12-03-25.jpg">Roscheider Hof BW 2024-02-10 12-03-25.jpg</a> 3,986 × 6,008; 10.92 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:S%27initier_au_boulier_en_10_le%C3%A7ons-fr.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/S%27initier_au_boulier_en_10_le%C3%A7ons-fr.pdf/page1-85px-S%27initier_au_boulier_en_10_le%C3%A7ons-fr.pdf.jpg" decoding="async" loading="lazy" width="85" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/S%27initier_au_boulier_en_10_le%C3%A7ons-fr.pdf/page1-127px-S%27initier_au_boulier_en_10_le%C3%A7ons-fr.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/S%27initier_au_boulier_en_10_le%C3%A7ons-fr.pdf/page1-169px-S%27initier_au_boulier_en_10_le%C3%A7ons-fr.pdf.jpg 2x" data-file-width="1239" data-file-height="1754" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:S%27initier_au_boulier_en_10_le%C3%A7ons-fr.pdf" class="galleryfilename galleryfilename-truncate" title="File:S'initier au boulier en 10 leçons-fr.pdf">S'initier au boulier en 10 leçons-fr.pdf</a> 1,239 × 1,754, 38 pages; 193 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Salaminische_Tafel_Salamis_Tablet_nach_Wilhelm_Kubitschek_Numismatische_Zeitschrift_Bd_31_Wien_1899_p._394_ff.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Salaminische_Tafel_Salamis_Tablet_nach_Wilhelm_Kubitschek_Numismatische_Zeitschrift_Bd_31_Wien_1899_p._394_ff.jpg/63px-Salaminische_Tafel_Salamis_Tablet_nach_Wilhelm_Kubitschek_Numismatische_Zeitschrift_Bd_31_Wien_1899_p._394_ff.jpg" decoding="async" loading="lazy" width="63" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Salaminische_Tafel_Salamis_Tablet_nach_Wilhelm_Kubitschek_Numismatische_Zeitschrift_Bd_31_Wien_1899_p._394_ff.jpg/94px-Salaminische_Tafel_Salamis_Tablet_nach_Wilhelm_Kubitschek_Numismatische_Zeitschrift_Bd_31_Wien_1899_p._394_ff.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Salaminische_Tafel_Salamis_Tablet_nach_Wilhelm_Kubitschek_Numismatische_Zeitschrift_Bd_31_Wien_1899_p._394_ff.jpg/125px-Salaminische_Tafel_Salamis_Tablet_nach_Wilhelm_Kubitschek_Numismatische_Zeitschrift_Bd_31_Wien_1899_p._394_ff.jpg 2x" data-file-width="242" data-file-height="462" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Salaminische_Tafel_Salamis_Tablet_nach_Wilhelm_Kubitschek_Numismatische_Zeitschrift_Bd_31_Wien_1899_p._394_ff.jpg" class="galleryfilename galleryfilename-truncate" title="File:Salaminische Tafel Salamis Tablet nach Wilhelm Kubitschek Numismatische Zeitschrift Bd 31 Wien 1899 p. 394 ff.jpg">Salaminische Tafel Salamis Tablet nach Wilhelm Kubitschek Numismatische Zeitschrift Bd 31 Wien 1899 p. 394 ff.jpg</a> 242 × 462; 61 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Sangi-Japanese_style_counting_rods.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/65/Sangi-Japanese_style_counting_rods.jpg/120px-Sangi-Japanese_style_counting_rods.jpg" decoding="async" loading="lazy" width="120" height="55" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/65/Sangi-Japanese_style_counting_rods.jpg/180px-Sangi-Japanese_style_counting_rods.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/65/Sangi-Japanese_style_counting_rods.jpg/240px-Sangi-Japanese_style_counting_rods.jpg 2x" data-file-width="1500" data-file-height="687" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Sangi-Japanese_style_counting_rods.jpg" class="galleryfilename galleryfilename-truncate" title="File:Sangi-Japanese style counting rods.jpg">Sangi-Japanese style counting rods.jpg</a> 1,500 × 687; 433 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Science_museum_030.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/35/Science_museum_030.jpg/120px-Science_museum_030.jpg" decoding="async" loading="lazy" width="120" height="90" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/3/35/Science_museum_030.jpg/180px-Science_museum_030.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/3/35/Science_museum_030.jpg/240px-Science_museum_030.jpg 2x" data-file-width="2048" data-file-height="1536" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Science_museum_030.jpg" class="galleryfilename galleryfilename-truncate" title="File:Science museum 030.jpg">Science museum 030.jpg</a> 2,048 × 1,536; 487 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Soda_Hall_abacus_-_plaque_(1).jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Soda_Hall_abacus_-_plaque_%281%29.jpg/120px-Soda_Hall_abacus_-_plaque_%281%29.jpg" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Soda_Hall_abacus_-_plaque_%281%29.jpg/180px-Soda_Hall_abacus_-_plaque_%281%29.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Soda_Hall_abacus_-_plaque_%281%29.jpg/240px-Soda_Hall_abacus_-_plaque_%281%29.jpg 2x" data-file-width="2325" data-file-height="1550" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Soda_Hall_abacus_-_plaque_(1).jpg" class="galleryfilename galleryfilename-truncate" title="File:Soda Hall abacus - plaque (1).jpg">Soda Hall abacus - plaque (1).jpg</a> 2,325 × 1,550; 1.43 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Soda_Hall_abacus_-_plaque_(2).jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Soda_Hall_abacus_-_plaque_%282%29.jpg/120px-Soda_Hall_abacus_-_plaque_%282%29.jpg" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Soda_Hall_abacus_-_plaque_%282%29.jpg/180px-Soda_Hall_abacus_-_plaque_%282%29.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Soda_Hall_abacus_-_plaque_%282%29.jpg/240px-Soda_Hall_abacus_-_plaque_%282%29.jpg 2x" data-file-width="4005" data-file-height="2670" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Soda_Hall_abacus_-_plaque_(2).jpg" class="galleryfilename galleryfilename-truncate" title="File:Soda Hall abacus - plaque (2).jpg">Soda Hall abacus - plaque (2).jpg</a> 4,005 × 2,670; 4.06 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Soda_Hall_abacus_with_laptop_and_smartphone_-_closeup.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Soda_Hall_abacus_with_laptop_and_smartphone_-_closeup.jpg/120px-Soda_Hall_abacus_with_laptop_and_smartphone_-_closeup.jpg" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Soda_Hall_abacus_with_laptop_and_smartphone_-_closeup.jpg/180px-Soda_Hall_abacus_with_laptop_and_smartphone_-_closeup.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Soda_Hall_abacus_with_laptop_and_smartphone_-_closeup.jpg/240px-Soda_Hall_abacus_with_laptop_and_smartphone_-_closeup.jpg 2x" data-file-width="4288" data-file-height="2848" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Soda_Hall_abacus_with_laptop_and_smartphone_-_closeup.jpg" class="galleryfilename galleryfilename-truncate" title="File:Soda Hall abacus with laptop and smartphone - closeup.jpg">Soda Hall abacus with laptop and smartphone - closeup.jpg</a> 4,288 × 2,848; 2.59 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Soda_Hall_abacus_with_laptop_and_smartphone.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Soda_Hall_abacus_with_laptop_and_smartphone.jpg/80px-Soda_Hall_abacus_with_laptop_and_smartphone.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Soda_Hall_abacus_with_laptop_and_smartphone.jpg/119px-Soda_Hall_abacus_with_laptop_and_smartphone.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Soda_Hall_abacus_with_laptop_and_smartphone.jpg/159px-Soda_Hall_abacus_with_laptop_and_smartphone.jpg 2x" data-file-width="2848" data-file-height="4288" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Soda_Hall_abacus_with_laptop_and_smartphone.jpg" class="galleryfilename galleryfilename-truncate" title="File:Soda Hall abacus with laptop and smartphone.jpg">Soda Hall abacus with laptop and smartphone.jpg</a> 2,848 × 4,288; 2.14 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_1.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_1.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_1.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_1.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_1.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_1.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_1.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_1.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 1.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 1.jpg</a> 1,832 × 2,748; 1,019 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_10.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a7/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_10.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_10.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a7/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_10.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_10.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/a/a7/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_10.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_10.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_10.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 10.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 10.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_11.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/64/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_11.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_11.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/64/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_11.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_11.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/64/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_11.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_11.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_11.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 11.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 11.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_12.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/50/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_12.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_12.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/50/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_12.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_12.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/50/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_12.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_12.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_12.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 12.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 12.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_13.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/67/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_13.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_13.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/67/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_13.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_13.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/67/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_13.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_13.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_13.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 13.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 13.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_14.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_14.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_14.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_14.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_14.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_14.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_14.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_14.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 14.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 14.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_15.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_15.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_15.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_15.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_15.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_15.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_15.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_15.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 15.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 15.jpg</a> 1,832 × 2,748; 1,021 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_16.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_16.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_16.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_16.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_16.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_16.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_16.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_16.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 16.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 16.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_17.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_17.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_17.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_17.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_17.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_17.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_17.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_17.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 17.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 17.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_18.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_18.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_18.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_18.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_18.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_18.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_18.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_18.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 18.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 18.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_2.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/0/07/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_2.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_2.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/0/07/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_2.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_2.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/0/07/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_2.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_2.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_2.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 2.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 2.jpg</a> 1,832 × 2,748; 1,020 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_3.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/64/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_3.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_3.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/64/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_3.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_3.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/64/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_3.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_3.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_3.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 3.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 3.jpg</a> 1,832 × 2,748; 1 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_4.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_4.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_4.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_4.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_4.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_4.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_4.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_4.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 4.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 4.jpg</a> 1,832 × 2,748; 1 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_5.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_5.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_5.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_5.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_5.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_5.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_5.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_5.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 5.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 5.jpg</a> 1,832 × 2,748; 1,019 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_6.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_6.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_6.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_6.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_6.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_6.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_6.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_6.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 6.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 6.jpg</a> 1,832 × 2,748; 1 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_7.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_7.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_7.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_7.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_7.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_7.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_7.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_7.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 7.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 7.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_8.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_8.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_8.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_8.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_8.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_8.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_8.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_8.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 8.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 8.jpg</a> 1,832 × 2,748; 1.01 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_9.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_9.jpg/80px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_9.jpg" decoding="async" loading="lazy" width="80" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_9.jpg/120px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_9.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_9.jpg/160px-Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_9.jpg 2x" data-file-width="1832" data-file-height="2748" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtracting_123456789_from_246913578_in_left-to-right_order_-_Step_9.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtracting 123456789 from 246913578 in left-to-right order - Step 9.jpg">Subtracting 123456789 from 246913578 in left-to-right order - Step 9.jpg</a> 1,832 × 2,748; 1.02 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Subtraction_on_an_abacus.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Subtraction_on_an_abacus.jpg/75px-Subtraction_on_an_abacus.jpg" decoding="async" loading="lazy" width="75" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Subtraction_on_an_abacus.jpg/112px-Subtraction_on_an_abacus.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Subtraction_on_an_abacus.jpg/150px-Subtraction_on_an_abacus.jpg 2x" data-file-width="1079" data-file-height="1728" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Subtraction_on_an_abacus.jpg" class="galleryfilename galleryfilename-truncate" title="File:Subtraction on an abacus.jpg">Subtraction on an abacus.jpg</a> 1,079 × 1,728; 91 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Suspended_lower_beads.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Suspended_lower_beads.jpg/116px-Suspended_lower_beads.jpg" decoding="async" loading="lazy" width="116" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Suspended_lower_beads.jpg/174px-Suspended_lower_beads.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Suspended_lower_beads.jpg/232px-Suspended_lower_beads.jpg 2x" data-file-width="462" data-file-height="478" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Suspended_lower_beads.jpg" class="galleryfilename galleryfilename-truncate" title="File:Suspended lower beads.jpg">Suspended lower beads.jpg</a> 462 × 478; 80 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:The_lone_goose_returns_to_its_flock.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/2/2c/The_lone_goose_returns_to_its_flock.png/120px-The_lone_goose_returns_to_its_flock.png" decoding="async" loading="lazy" width="120" height="59" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/2/2c/The_lone_goose_returns_to_its_flock.png/180px-The_lone_goose_returns_to_its_flock.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/2/2c/The_lone_goose_returns_to_its_flock.png/240px-The_lone_goose_returns_to_its_flock.png 2x" data-file-width="624" data-file-height="308" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:The_lone_goose_returns_to_its_flock.png" class="galleryfilename galleryfilename-truncate" title="File:The lone goose returns to its flock.png">The lone goose returns to its flock.png</a> 624 × 308; 30 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:The_small_abacus_of_al-Khw%C4%81rizm%C4%AB_WITH_FIVE_TEN_BASE.tif" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/0/01/The_small_abacus_of_al-Khw%C4%81rizm%C4%AB_WITH_FIVE_TEN_BASE.tif/lossless-page1-120px-The_small_abacus_of_al-Khw%C4%81rizm%C4%AB_WITH_FIVE_TEN_BASE.tif.png" decoding="async" loading="lazy" width="120" height="67" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/0/01/The_small_abacus_of_al-Khw%C4%81rizm%C4%AB_WITH_FIVE_TEN_BASE.tif/lossless-page1-180px-The_small_abacus_of_al-Khw%C4%81rizm%C4%AB_WITH_FIVE_TEN_BASE.tif.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/0/01/The_small_abacus_of_al-Khw%C4%81rizm%C4%AB_WITH_FIVE_TEN_BASE.tif/lossless-page1-240px-The_small_abacus_of_al-Khw%C4%81rizm%C4%AB_WITH_FIVE_TEN_BASE.tif.png 2x" data-file-width="1366" data-file-height="768" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:The_small_abacus_of_al-Khw%C4%81rizm%C4%AB_WITH_FIVE_TEN_BASE.tif" class="galleryfilename galleryfilename-truncate" title="File:The small abacus of al-Khwārizmī WITH FIVE TEN BASE.tif">The small abacus of al-Khwārizmī WITH FIVE TEN BASE.tif</a> 1,366 × 768; 184 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:The_small_abacus_of_al-Khw%C4%81rizm%C4%AB.gif" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/The_small_abacus_of_al-Khw%C4%81rizm%C4%AB.gif/120px-The_small_abacus_of_al-Khw%C4%81rizm%C4%AB.gif" decoding="async" loading="lazy" width="120" height="67" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/The_small_abacus_of_al-Khw%C4%81rizm%C4%AB.gif/180px-The_small_abacus_of_al-Khw%C4%81rizm%C4%AB.gif 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/The_small_abacus_of_al-Khw%C4%81rizm%C4%AB.gif/240px-The_small_abacus_of_al-Khw%C4%81rizm%C4%AB.gif 2x" data-file-width="1366" data-file-height="768" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:The_small_abacus_of_al-Khw%C4%81rizm%C4%AB.gif" class="galleryfilename galleryfilename-truncate" title="File:The small abacus of al-Khwārizmī.gif">The small abacus of al-Khwārizmī.gif</a> 1,366 × 768; 247 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:The_vintage_abacus_at_the_Petrovskoye_mansion_museum.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/ef/The_vintage_abacus_at_the_Petrovskoye_mansion_museum.jpg/90px-The_vintage_abacus_at_the_Petrovskoye_mansion_museum.jpg" decoding="async" loading="lazy" width="90" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/ef/The_vintage_abacus_at_the_Petrovskoye_mansion_museum.jpg/135px-The_vintage_abacus_at_the_Petrovskoye_mansion_museum.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/ef/The_vintage_abacus_at_the_Petrovskoye_mansion_museum.jpg/180px-The_vintage_abacus_at_the_Petrovskoye_mansion_museum.jpg 2x" data-file-width="3000" data-file-height="4000" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:The_vintage_abacus_at_the_Petrovskoye_mansion_museum.jpg" class="galleryfilename galleryfilename-truncate" title="File:The vintage abacus at the Petrovskoye mansion museum.jpg">The vintage abacus at the Petrovskoye mansion museum.jpg</a> 3,000 × 4,000; 3.05 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Tibetischer_Sandabakus_1_Dieter_Schuh.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Tibetischer_Sandabakus_1_Dieter_Schuh.jpg/120px-Tibetischer_Sandabakus_1_Dieter_Schuh.jpg" decoding="async" loading="lazy" width="120" height="83" srcset="https://upload.wikimedia.org/wikipedia/commons/a/ad/Tibetischer_Sandabakus_1_Dieter_Schuh.jpg 1.5x" data-file-width="165" data-file-height="114" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Tibetischer_Sandabakus_1_Dieter_Schuh.jpg" class="galleryfilename galleryfilename-truncate" title="File:Tibetischer Sandabakus 1 Dieter Schuh.jpg">Tibetischer Sandabakus 1 Dieter Schuh.jpg</a> 165 × 114; 13 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Tibetischer_Sandabakus_Dieter_Schuh.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/0/06/Tibetischer_Sandabakus_Dieter_Schuh.jpg/120px-Tibetischer_Sandabakus_Dieter_Schuh.jpg" decoding="async" loading="lazy" width="120" height="67" srcset="https://upload.wikimedia.org/wikipedia/commons/0/06/Tibetischer_Sandabakus_Dieter_Schuh.jpg 1.5x" data-file-width="164" data-file-height="92" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Tibetischer_Sandabakus_Dieter_Schuh.jpg" class="galleryfilename galleryfilename-truncate" title="File:Tibetischer Sandabakus Dieter Schuh.jpg">Tibetischer Sandabakus Dieter Schuh.jpg</a> 164 × 92; 11 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Timeline_of_abacus_-_ta.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Timeline_of_abacus_-_ta.png/120px-Timeline_of_abacus_-_ta.png" decoding="async" loading="lazy" width="120" height="23" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Timeline_of_abacus_-_ta.png/180px-Timeline_of_abacus_-_ta.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Timeline_of_abacus_-_ta.png/240px-Timeline_of_abacus_-_ta.png 2x" data-file-width="1000" data-file-height="193" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Timeline_of_abacus_-_ta.png" class="galleryfilename galleryfilename-truncate" title="File:Timeline of abacus - ta.png">Timeline of abacus - ta.png</a> 1,000 × 193; 16 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Traditional_abacus_suspended_bead_example.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Traditional_abacus_suspended_bead_example.png/120px-Traditional_abacus_suspended_bead_example.png" decoding="async" loading="lazy" width="120" height="74" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Traditional_abacus_suspended_bead_example.png/180px-Traditional_abacus_suspended_bead_example.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Traditional_abacus_suspended_bead_example.png/240px-Traditional_abacus_suspended_bead_example.png 2x" data-file-width="568" data-file-height="352" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Traditional_abacus_suspended_bead_example.png" class="galleryfilename galleryfilename-truncate" title="File:Traditional abacus suspended bead example.png">Traditional abacus suspended bead example.png</a> 568 × 352; 10 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Usando_un_abaco-01.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Usando_un_abaco-01.png/120px-Usando_un_abaco-01.png" decoding="async" loading="lazy" width="120" height="88" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Usando_un_abaco-01.png/180px-Usando_un_abaco-01.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Usando_un_abaco-01.png/240px-Usando_un_abaco-01.png 2x" data-file-width="710" data-file-height="521" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Usando_un_abaco-01.png" class="galleryfilename galleryfilename-truncate" title="File:Usando un abaco-01.png">Usando un abaco-01.png</a> 710 × 521; 25 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Usando_un_abaco-02.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/34/Usando_un_abaco-02.png/120px-Usando_un_abaco-02.png" decoding="async" loading="lazy" width="120" height="60" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/3/34/Usando_un_abaco-02.png/180px-Usando_un_abaco-02.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/3/34/Usando_un_abaco-02.png/240px-Usando_un_abaco-02.png 2x" data-file-width="710" data-file-height="357" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Usando_un_abaco-02.png" class="galleryfilename galleryfilename-truncate" title="File:Usando un abaco-02.png">Usando un abaco-02.png</a> 710 × 357; 24 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Usando_un_abaco-03.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/40/Usando_un_abaco-03.png/120px-Usando_un_abaco-03.png" decoding="async" loading="lazy" width="120" height="84" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/4/40/Usando_un_abaco-03.png/180px-Usando_un_abaco-03.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/4/40/Usando_un_abaco-03.png/240px-Usando_un_abaco-03.png 2x" data-file-width="810" data-file-height="569" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Usando_un_abaco-03.png" class="galleryfilename galleryfilename-truncate" title="File:Usando un abaco-03.png">Usando un abaco-03.png</a> 810 × 569; 52 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Usando_un_abaco-09.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Usando_un_abaco-09.png/98px-Usando_un_abaco-09.png" decoding="async" loading="lazy" width="98" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Usando_un_abaco-09.png/148px-Usando_un_abaco-09.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Usando_un_abaco-09.png/197px-Usando_un_abaco-09.png 2x" data-file-width="652" data-file-height="794" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Usando_un_abaco-09.png" class="galleryfilename galleryfilename-truncate" title="File:Usando un abaco-09.png">Usando un abaco-09.png</a> 652 × 794; 43 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Usando_un_abaco-10.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Usando_un_abaco-10.png/120px-Usando_un_abaco-10.png" decoding="async" loading="lazy" width="120" height="71" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Usando_un_abaco-10.png/180px-Usando_un_abaco-10.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Usando_un_abaco-10.png/240px-Usando_un_abaco-10.png 2x" data-file-width="1172" data-file-height="692" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Usando_un_abaco-10.png" class="galleryfilename galleryfilename-truncate" title="File:Usando un abaco-10.png">Usando un abaco-10.png</a> 1,172 × 692; 44 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Usando_un_abaco-11.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Usando_un_abaco-11.png/100px-Usando_un_abaco-11.png" decoding="async" loading="lazy" width="100" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Usando_un_abaco-11.png/150px-Usando_un_abaco-11.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Usando_un_abaco-11.png/200px-Usando_un_abaco-11.png 2x" data-file-width="558" data-file-height="668" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Usando_un_abaco-11.png" class="galleryfilename galleryfilename-truncate" title="File:Usando un abaco-11.png">Usando un abaco-11.png</a> 558 × 668; 41 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Using-an-Abacus-01.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/71/Using-an-Abacus-01.png/120px-Using-an-Abacus-01.png" decoding="async" loading="lazy" width="120" height="88" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/71/Using-an-Abacus-01.png/180px-Using-an-Abacus-01.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/71/Using-an-Abacus-01.png/240px-Using-an-Abacus-01.png 2x" data-file-width="712" data-file-height="523" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Using-an-Abacus-01.png" class="galleryfilename galleryfilename-truncate" title="File:Using-an-Abacus-01.png">Using-an-Abacus-01.png</a> 712 × 523; 25 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Using-an-Abacus-02.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c0/Using-an-Abacus-02.png/120px-Using-an-Abacus-02.png" decoding="async" loading="lazy" width="120" height="60" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c0/Using-an-Abacus-02.png/180px-Using-an-Abacus-02.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/c0/Using-an-Abacus-02.png/240px-Using-an-Abacus-02.png 2x" data-file-width="722" data-file-height="360" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Using-an-Abacus-02.png" class="galleryfilename galleryfilename-truncate" title="File:Using-an-Abacus-02.png">Using-an-Abacus-02.png</a> 722 × 360; 24 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Using-an-Abacus-03.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Using-an-Abacus-03.png/120px-Using-an-Abacus-03.png" decoding="async" loading="lazy" width="120" height="84" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Using-an-Abacus-03.png/180px-Using-an-Abacus-03.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Using-an-Abacus-03.png/240px-Using-an-Abacus-03.png 2x" data-file-width="810" data-file-height="569" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Using-an-Abacus-03.png" class="galleryfilename galleryfilename-truncate" title="File:Using-an-Abacus-03.png">Using-an-Abacus-03.png</a> 810 × 569; 51 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Using-an-Abacus-04.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Using-an-Abacus-04.png/120px-Using-an-Abacus-04.png" decoding="async" loading="lazy" width="120" height="92" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Using-an-Abacus-04.png/180px-Using-an-Abacus-04.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Using-an-Abacus-04.png/240px-Using-an-Abacus-04.png 2x" data-file-width="490" data-file-height="376" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Using-an-Abacus-04.png" class="galleryfilename galleryfilename-truncate" title="File:Using-an-Abacus-04.png">Using-an-Abacus-04.png</a> 490 × 376; 22 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Using-an-Abacus-05.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Using-an-Abacus-05.png/109px-Using-an-Abacus-05.png" decoding="async" loading="lazy" width="109" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Using-an-Abacus-05.png/163px-Using-an-Abacus-05.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Using-an-Abacus-05.png/218px-Using-an-Abacus-05.png 2x" data-file-width="324" data-file-height="357" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Using-an-Abacus-05.png" class="galleryfilename galleryfilename-truncate" title="File:Using-an-Abacus-05.png">Using-an-Abacus-05.png</a> 324 × 357; 14 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Using-an-Abacus-06.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Using-an-Abacus-06.png/120px-Using-an-Abacus-06.png" decoding="async" loading="lazy" width="120" height="41" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Using-an-Abacus-06.png/180px-Using-an-Abacus-06.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Using-an-Abacus-06.png/240px-Using-an-Abacus-06.png 2x" data-file-width="690" data-file-height="233" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Using-an-Abacus-06.png" class="galleryfilename galleryfilename-truncate" title="File:Using-an-Abacus-06.png">Using-an-Abacus-06.png</a> 690 × 233; 12 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Using-an-Abacus-07.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Using-an-Abacus-07.png/120px-Using-an-Abacus-07.png" decoding="async" loading="lazy" width="120" height="70" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Using-an-Abacus-07.png/180px-Using-an-Abacus-07.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Using-an-Abacus-07.png/240px-Using-an-Abacus-07.png 2x" data-file-width="243" data-file-height="141" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Using-an-Abacus-07.png" class="galleryfilename galleryfilename-truncate" title="File:Using-an-Abacus-07.png">Using-an-Abacus-07.png</a> 243 × 141; 9 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Using-an-Abacus-08.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Using-an-Abacus-08.png/90px-Using-an-Abacus-08.png" decoding="async" loading="lazy" width="90" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Using-an-Abacus-08.png/135px-Using-an-Abacus-08.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Using-an-Abacus-08.png/180px-Using-an-Abacus-08.png 2x" data-file-width="261" data-file-height="348" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Using-an-Abacus-08.png" class="galleryfilename galleryfilename-truncate" title="File:Using-an-Abacus-08.png">Using-an-Abacus-08.png</a> 261 × 348; 53 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Using-an-Abacus-09.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Using-an-Abacus-09.png/103px-Using-an-Abacus-09.png" decoding="async" loading="lazy" width="103" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Using-an-Abacus-09.png/154px-Using-an-Abacus-09.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Using-an-Abacus-09.png/205px-Using-an-Abacus-09.png 2x" data-file-width="650" data-file-height="760" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Using-an-Abacus-09.png" class="galleryfilename galleryfilename-truncate" title="File:Using-an-Abacus-09.png">Using-an-Abacus-09.png</a> 650 × 760; 44 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Using-an-Abacus-10.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Using-an-Abacus-10.png/120px-Using-an-Abacus-10.png" decoding="async" loading="lazy" width="120" height="71" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Using-an-Abacus-10.png/180px-Using-an-Abacus-10.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Using-an-Abacus-10.png/240px-Using-an-Abacus-10.png 2x" data-file-width="1170" data-file-height="690" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Using-an-Abacus-10.png" class="galleryfilename galleryfilename-truncate" title="File:Using-an-Abacus-10.png">Using-an-Abacus-10.png</a> 1,170 × 690; 46 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Using-an-Abacus-11.png" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Using-an-Abacus-11.png/101px-Using-an-Abacus-11.png" decoding="async" loading="lazy" width="101" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Using-an-Abacus-11.png/151px-Using-an-Abacus-11.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Using-an-Abacus-11.png/201px-Using-an-Abacus-11.png 2x" data-file-width="560" data-file-height="668" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Using-an-Abacus-11.png" class="galleryfilename galleryfilename-truncate" title="File:Using-an-Abacus-11.png">Using-an-Abacus-11.png</a> 560 × 668; 44 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Wikimuc-computerarchiv_(Pac-Man_Console).jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a5/Wikimuc-computerarchiv_%28Pac-Man_Console%29.jpg/120px-Wikimuc-computerarchiv_%28Pac-Man_Console%29.jpg" decoding="async" loading="lazy" width="120" height="68" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a5/Wikimuc-computerarchiv_%28Pac-Man_Console%29.jpg/180px-Wikimuc-computerarchiv_%28Pac-Man_Console%29.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/a/a5/Wikimuc-computerarchiv_%28Pac-Man_Console%29.jpg/240px-Wikimuc-computerarchiv_%28Pac-Man_Console%29.jpg 2x" data-file-width="1244" data-file-height="706" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Wikimuc-computerarchiv_(Pac-Man_Console).jpg" class="galleryfilename galleryfilename-truncate" title="File:Wikimuc-computerarchiv (Pac-Man Console).jpg">Wikimuc-computerarchiv (Pac-Man Console).jpg</a> 1,244 × 706; 745 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Wikimuc-computerarchiv.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Wikimuc-computerarchiv.jpg/120px-Wikimuc-computerarchiv.jpg" decoding="async" loading="lazy" width="120" height="80" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Wikimuc-computerarchiv.jpg/180px-Wikimuc-computerarchiv.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Wikimuc-computerarchiv.jpg/240px-Wikimuc-computerarchiv.jpg 2x" data-file-width="5547" data-file-height="3699" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Wikimuc-computerarchiv.jpg" class="galleryfilename galleryfilename-truncate" title="File:Wikimuc-computerarchiv.jpg">Wikimuc-computerarchiv.jpg</a> 5,547 × 3,699; 13.93 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Zeugf%C3%A4rberei_Gutau_08.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/40/Zeugf%C3%A4rberei_Gutau_08.jpg/120px-Zeugf%C3%A4rberei_Gutau_08.jpg" decoding="async" loading="lazy" width="120" height="87" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/4/40/Zeugf%C3%A4rberei_Gutau_08.jpg/180px-Zeugf%C3%A4rberei_Gutau_08.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/4/40/Zeugf%C3%A4rberei_Gutau_08.jpg/240px-Zeugf%C3%A4rberei_Gutau_08.jpg 2x" data-file-width="4611" data-file-height="3333" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Zeugf%C3%A4rberei_Gutau_08.jpg" class="galleryfilename galleryfilename-truncate" title="File:Zeugfärberei Gutau 08.jpg">Zeugfärberei Gutau 08.jpg</a> 4,611 × 3,333; 3.97 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Zhusuan_anli.gif" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Zhusuan_anli.gif/120px-Zhusuan_anli.gif" decoding="async" loading="lazy" width="120" height="101" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Zhusuan_anli.gif/180px-Zhusuan_anli.gif 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Zhusuan_anli.gif/240px-Zhusuan_anli.gif 2x" data-file-width="567" data-file-height="475" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:Zhusuan_anli.gif" class="galleryfilename galleryfilename-truncate" title="File:Zhusuan anli.gif">Zhusuan anli.gif</a> 567 × 475; 91 KB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:%C3%81baco_banner.pdf" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/%C3%81baco_banner.pdf/page1-97px-%C3%81baco_banner.pdf.jpg" decoding="async" loading="lazy" width="97" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/%C3%81baco_banner.pdf/page1-146px-%C3%81baco_banner.pdf.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/%C3%81baco_banner.pdf/page1-195px-%C3%81baco_banner.pdf.jpg 2x" data-file-width="1908" data-file-height="2350" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:%C3%81baco_banner.pdf" class="galleryfilename galleryfilename-truncate" title="File:Ábaco banner.pdf">Ábaco banner.pdf</a> 1,908 × 2,350; 2.16 MB<br> </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:%E7%AE%97%E7%9B%A4.jpg" class="mw-file-description"><img alt="" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/9b/%E7%AE%97%E7%9B%A4.jpg/120px-%E7%AE%97%E7%9B%A4.jpg" decoding="async" loading="lazy" width="120" height="115" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/9b/%E7%AE%97%E7%9B%A4.jpg/180px-%E7%AE%97%E7%9B%A4.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/9b/%E7%AE%97%E7%9B%A4.jpg/240px-%E7%AE%97%E7%9B%A4.jpg 2x" data-file-width="1310" data-file-height="1252" /></a></span></div> <div class="gallerytext"><a href="/wiki/File:%E7%AE%97%E7%9B%A4.jpg" class="galleryfilename galleryfilename-truncate" title="File:算盤.jpg">算盤.jpg</a> 1,310 × 1,252; 637 KB<br> </div> </li> </ul> </div></div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://commons.wikimedia.org/w/index.php?title=Category:Abacus&oldid=919340985">https://commons.wikimedia.org/w/index.php?title=Category:Abacus&oldid=919340985</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Special:Categories" title="Special:Categories">Categories</a>: <ul><li><a href="/wiki/Category:Mechanical_calculators" title="Category:Mechanical calculators">Mechanical calculators</a></li><li><a href="/wiki/Category:History_of_arithmetic" title="Category:History of arithmetic">History of arithmetic</a></li><li><a href="/wiki/Category:Arithmetic" title="Category:Arithmetic">Arithmetic</a></li><li><a href="/wiki/Category:Didactic_method" title="Category:Didactic method">Didactic method</a></li><li><a href="/wiki/Category:Mathematical_manipulatives" title="Category:Mathematical manipulatives">Mathematical manipulatives</a></li><li><a href="/wiki/Category:Beads" title="Category:Beads">Beads</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-user-shown">Non-topical/index: <ul><li><a href="/wiki/Category:Uses_of_Wikidata_Infobox" title="Category:Uses of Wikidata Infobox">Uses of Wikidata Infobox</a></li></ul></div></div> </div> </div> <div id="mw-navigation"> <h2>Navigation menu</h2> <div id="mw-head"> <nav id="p-personal" class="mw-portlet mw-portlet-personal vector-user-menu-legacy vector-menu" aria-labelledby="p-personal-label" > <h3 id="p-personal-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Personal tools</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-uls" class="mw-list-item active"><a class="uls-trigger" href="#"><span>English</span></a></li><li id="pt-anonuserpage" class="mw-list-item"><span title="The user page for the IP address you are editing as">Not logged in</span></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:MyTalk" title="Discussion about edits from this IP address [n]" accesskey="n"><span>Talk</span></a></li><li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Contributions</span></a></li><li id="pt-createaccount" class="mw-list-item"><a href="/w/index.php?title=Special:CreateAccount&returnto=Category%3AAbacus" title="You are encouraged to create an account and log in; however, it is not mandatory"><span>Create account</span></a></li><li id="pt-login" class="mw-list-item"><a href="/w/index.php?title=Special:UserLogin&returnto=Category%3AAbacus" title="You are encouraged to log in; however, it is not mandatory [o]" accesskey="o"><span>Log in</span></a></li> </ul> </div> </nav> <div id="left-navigation"> <nav id="p-namespaces" class="mw-portlet mw-portlet-namespaces vector-menu-tabs vector-menu-tabs-legacy vector-menu" aria-labelledby="p-namespaces-label" > <h3 id="p-namespaces-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Namespaces</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-category" class="selected mw-list-item"><a href="/wiki/Category:Abacus" title="View the category page [c]" accesskey="c"><span>Category</span></a></li><li id="ca-talk" class="new mw-list-item"><a href="/w/index.php?title=Category_talk:Abacus&action=edit&redlink=1" rel="discussion" class="new" title="Discussion about the content page (page does not exist) [t]" accesskey="t"><span>Discussion</span></a></li> </ul> </div> </nav> <nav id="p-variants" class="mw-portlet mw-portlet-variants emptyPortlet vector-menu-dropdown vector-menu" aria-labelledby="p-variants-label" > <input type="checkbox" id="p-variants-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-variants" class="vector-menu-checkbox" aria-labelledby="p-variants-label" > <label id="p-variants-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">English</span> </label> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </nav> </div> <div id="right-navigation"> <nav id="p-views" class="mw-portlet mw-portlet-views vector-menu-tabs vector-menu-tabs-legacy vector-menu" aria-labelledby="p-views-label" > <h3 id="p-views-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Views</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected mw-list-item"><a href="/wiki/Category:Abacus"><span>View</span></a></li><li id="ca-edit" class="mw-list-item"><a href="/w/index.php?title=Category:Abacus&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-history" class="mw-list-item"><a href="/w/index.php?title=Category:Abacus&action=history" title="Past revisions of this page [h]" accesskey="h"><span>History</span></a></li> </ul> </div> </nav> <nav id="p-cactions" class="mw-portlet mw-portlet-cactions emptyPortlet vector-menu-dropdown vector-menu" aria-labelledby="p-cactions-label" title="More options" > <input type="checkbox" id="p-cactions-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-cactions" class="vector-menu-checkbox" aria-labelledby="p-cactions-label" > <label id="p-cactions-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">More</span> </label> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </nav> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box"> <h3 >Search</h3> <form action="/w/index.php" id="searchform" class="vector-search-box-form"> <div id="simpleSearch" class="vector-search-box-inner" data-search-loc="header-navigation"> <input class="vector-search-box-input" type="search" name="search" placeholder="Search Wikimedia Commons" aria-label="Search Wikimedia Commons" autocapitalize="sentences" title="Search Wikimedia Commons [f]" accesskey="f" id="searchInput" > <input type="hidden" name="title" value="Special:MediaSearch"> <input id="mw-searchButton" class="searchButton mw-fallbackSearchButton" type="submit" name="fulltext" title="Search the pages for this text" value="Search"> <input id="searchButton" class="searchButton" type="submit" name="go" title="Go to a page with this exact name if it exists" value="Go"> </div> </form> </div> </div> </div> <div id="mw-panel" class="vector-legacy-sidebar"> <div id="p-logo" role="banner"> <a class="mw-wiki-logo" href="/wiki/Main_Page" title="Visit the main page"></a> </div> <nav id="p-navigation" class="mw-portlet mw-portlet-navigation vector-menu-portal portal vector-menu" aria-labelledby="p-navigation-label" > <h3 id="p-navigation-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Navigate</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Main_Page" title="Visit the main page [z]" accesskey="z"><span>Main page</span></a></li><li id="n-welcome" class="mw-list-item"><a href="/wiki/Commons:Welcome"><span>Welcome</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Commons:Community_portal" title="About the project, what you can do, where to find things"><span>Community portal</span></a></li><li id="n-village-pump" class="mw-list-item"><a href="/wiki/Commons:Village_pump"><span>Village pump</span></a></li><li id="n-help" class="mw-list-item"><a href="/wiki/Special:MyLanguage/Help:Contents" title="The place to find out"><span>Help center</span></a></li> </ul> </div> </nav> <nav id="p-participate" class="mw-portlet mw-portlet-participate vector-menu-portal portal vector-menu" aria-labelledby="p-participate-label" > <h3 id="p-participate-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Participate</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-uploadbtn" class="mw-list-item"><a href="/wiki/Special:UploadWizard"><span>Upload file</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:RecentChanges" title="A list of recent changes in the wiki [r]" accesskey="r"><span>Recent changes</span></a></li><li id="n-latestfiles" class="mw-list-item"><a href="/wiki/Special:NewFiles"><span>Latest files</span></a></li><li id="n-randomimage" class="mw-list-item"><a href="/wiki/Special:Random/File" title="Load a random file [x]" accesskey="x"><span>Random file</span></a></li><li id="n-contact" class="mw-list-item"><a href="/wiki/Commons:Contact_us"><span>Contact us</span></a></li> </ul> </div> </nav> <nav id="p-tb" class="mw-portlet mw-portlet-tb vector-menu-portal portal vector-menu" aria-labelledby="p-tb-label" > <h3 id="p-tb-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Tools</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/Category:Abacus" title="A list of all wiki pages that link here [j]" accesskey="j"><span>What links here</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/Category:Abacus" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k"><span>Related changes</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Category:Abacus&oldid=919340985" title="Permanent link to this revision of this page"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Category:Abacus&action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fcommons.wikimedia.org%2Fwiki%2FCategory%3AAbacus"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fcommons.wikimedia.org%2Fwiki%2FCategory%3AAbacus"><span>Download QR code</span></a></li> </ul> </div> </nav> <nav id="p-coll-print_export" class="mw-portlet mw-portlet-coll-print_export vector-menu-portal portal vector-menu" aria-labelledby="p-coll-print_export-label" > <h3 id="p-coll-print_export-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Print/export</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Special:Book&bookcmd=book_creator&referer=Category%3AAbacus"><span>Create a book</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=Category%3AAbacus&action=show-download-screen"><span>Download as PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Category:Abacus&printable=yes" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li> </ul> </div> </nav> <nav id="p-wikibase-otherprojects" class="mw-portlet mw-portlet-wikibase-otherprojects vector-menu-portal portal vector-menu" aria-labelledby="p-wikibase-otherprojects-label" > <h3 id="p-wikibase-otherprojects-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">In other projects</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-wikipedia mw-list-item"><a href="https://en.wikipedia.org/wiki/Category:Abacus" hreflang="en"><span>Wikipedia</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q6423154" title="Link to connected data repository item [g]" accesskey="g"><span>Wikidata item</span></a></li> </ul> </div> </nav> <nav id="p-lang" class="mw-portlet mw-portlet-lang vector-menu-portal portal vector-menu" aria-labelledby="p-lang-label" > <h3 id="p-lang-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">In Wikipedia</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Abakus" title="Abakus – Afrikaans" lang="af" hreflang="af" data-title="Abakus" data-language-autonym="Afrikaans" data-language-local-name="Afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Abaco" title="Abaco – Aragonese" lang="an" hreflang="an" data-title="Abaco" data-language-autonym="Aragonés" data-language-local-name="Aragonese" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D8%B9%D8%AF%D8%A7%D8%AF" title="معداد – Arabic" lang="ar" hreflang="ar" data-title="معداد" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%8F%E0%A6%AC%E0%A6%BE%E0%A6%95%E0%A6%BE%E0%A6%9B" title="এবাকাছ – Assamese" lang="as" hreflang="as" data-title="এবাকাছ" data-language-autonym="অসমীয়া" data-language-local-name="Assamese" class="interlanguage-link-target"><span>অসমীয়া</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/%C3%81bacu" title="Ábacu – Asturian" lang="ast" hreflang="ast" data-title="Ábacu" data-language-autonym="Asturianu" data-language-local-name="Asturian" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-ay mw-list-item"><a href="https://ay.wikipedia.org/wiki/Jakhu%C3%B1a" title="Jakhuña – Aymara" lang="ay" hreflang="ay" data-title="Jakhuña" data-language-autonym="Aymar aru" data-language-local-name="Aymara" class="interlanguage-link-target"><span>Aymar aru</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Abak" title="Abak – Azerbaijani" lang="az" hreflang="az" data-title="Abak" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%DA%86%D8%A4%D8%B1%D8%AA%DA%A9%D9%87" title="چؤرتکه – South Azerbaijani" lang="azb" hreflang="azb" data-title="چؤرتکه" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Abakus" title="Abakus – Central Bikol" lang="bcl" hreflang="bcl" data-title="Abakus" data-language-autonym="Bikol Central" data-language-local-name="Central Bikol" class="interlanguage-link-target"><span>Bikol Central</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA" title="Абак – Belarusian" lang="be" hreflang="be" data-title="Абак" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-tarask mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%9A%D0%B0%D1%82%D1%8D%D0%B3%D0%BE%D1%80%D1%8B%D1%8F:%D0%90%D0%B1%D0%B0%D0%BA%D1%96" title="Катэгорыя:Абакі – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Катэгорыя:Абакі" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA" title="Абак – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Абак" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA_(%D1%81%D0%BC%D0%B5%D1%82%D0%B0%D0%BB%D0%BE)" title="Абак (сметало) – Bulgarian" lang="bg" hreflang="bg" data-title="Абак (сметало)" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bi mw-list-item"><a href="https://bi.wikipedia.org/wiki/Abakus" title="Abakus – Bislama" lang="bi" hreflang="bi" data-title="Abakus" data-language-autonym="Bislama" data-language-local-name="Bislama" class="interlanguage-link-target"><span>Bislama</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%85%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%AC%E0%A6%BE%E0%A6%95%E0%A6%BE%E0%A6%B8" title="অ্যাবাকাস – Bangla" lang="bn" hreflang="bn" data-title="অ্যাবাকাস" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Abakus_(ra%C4%8Dunaljka)" title="Abakus (računaljka) – Bosnian" lang="bs" hreflang="bs" data-title="Abakus (računaljka)" data-language-autonym="Bosanski" data-language-local-name="Bosnian" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-bxr mw-list-item"><a href="https://bxr.wikipedia.org/wiki/%D0%A1%D0%B0%D0%BC%D0%BF%D0%B8%D0%BD" title="Сампин – Russia Buriat" lang="bxr" hreflang="bxr" data-title="Сампин" data-language-autonym="Буряад" data-language-local-name="Russia Buriat" class="interlanguage-link-target"><span>Буряад</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/%C3%80bac" title="Àbac – Catalan" lang="ca" hreflang="ca" data-title="Àbac" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cdo mw-list-item"><a href="https://cdo.wikipedia.org/wiki/S%C3%A1ung-bu%C3%A0ng" title="Sáung-buàng – Mindong" lang="cdo" hreflang="cdo" data-title="Sáung-buàng" data-language-autonym="閩東語 / Mìng-dĕ̤ng-ngṳ̄" data-language-local-name="Mindong" class="interlanguage-link-target"><span>閩東語 / Mìng-dĕ̤ng-ngṳ̄</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Po%C4%8D%C3%ADtadlo" title="Počítadlo – Czech" lang="cs" hreflang="cs" data-title="Počítadlo" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA" title="Абак – Chuvash" lang="cv" hreflang="cv" data-title="Абак" data-language-autonym="Чӑвашла" data-language-local-name="Chuvash" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Abacws" title="Abacws – Welsh" lang="cy" hreflang="cy" data-title="Abacws" data-language-autonym="Cymraeg" data-language-local-name="Welsh" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Abacus_(regnemaskine)" title="Abacus (regnemaskine) – Danish" lang="da" hreflang="da" data-title="Abacus (regnemaskine)" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Abakus_(Rechenhilfsmittel)" title="Abakus (Rechenhilfsmittel) – German" lang="de" hreflang="de" data-title="Abakus (Rechenhilfsmittel)" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%86%CE%B2%CE%B1%CE%BA%CE%B1%CF%82" title="Άβακας – Greek" lang="el" hreflang="el" data-title="Άβακας" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Abacus" title="Abacus – English" lang="en" hreflang="en" data-title="Abacus" data-language-autonym="English" data-language-local-name="English" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Abako_(me%C4%A5anika_kalkulilo)" title="Abako (meĥanika kalkulilo) – Esperanto" lang="eo" hreflang="eo" data-title="Abako (meĥanika kalkulilo)" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/%C3%81baco" title="Ábaco – Spanish" lang="es" hreflang="es" data-title="Ábaco" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Abakus" title="Abakus – Estonian" lang="et" hreflang="et" data-title="Abakus" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Abako" title="Abako – Basque" lang="eu" hreflang="eu" data-title="Abako" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DA%86%D8%B1%D8%AA%DA%A9%D9%87" title="چرتکه – Persian" lang="fa" hreflang="fa" data-title="چرتکه" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Helmitaulu" title="Helmitaulu – Finnish" lang="fi" hreflang="fi" data-title="Helmitaulu" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Abaque_(calcul)" title="Abaque (calcul) – French" lang="fr" hreflang="fr" data-title="Abaque (calcul)" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Abacas" title="Abacas – Irish" lang="ga" hreflang="ga" data-title="Abacas" data-language-autonym="Gaeilge" data-language-local-name="Irish" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gan mw-list-item"><a href="https://gan.wikipedia.org/wiki/%E7%AE%97%E7%9B%A4" title="算盤 – Gan" lang="gan" hreflang="gan" data-title="算盤" data-language-autonym="贛語" data-language-local-name="Gan" class="interlanguage-link-target"><span>贛語</span></a></li><li class="interlanguage-link interwiki-gcr mw-list-item"><a href="https://gcr.wikipedia.org/wiki/Bouly%C3%A9" title="Boulyé – Guianan Creole" lang="gcr" hreflang="gcr" data-title="Boulyé" data-language-autonym="Kriyòl gwiyannen" data-language-local-name="Guianan Creole" class="interlanguage-link-target"><span>Kriyòl gwiyannen</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/%C3%81baco" title="Ábaco – Galician" lang="gl" hreflang="gl" data-title="Ábaco" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-glk mw-list-item"><a href="https://glk.wikipedia.org/wiki/%DA%86%DB%8A%D8%B1%D8%AA%D9%8A%DA%A9%D8%A7" title="چۊرتيکا – Gilaki" lang="glk" hreflang="glk" data-title="چۊرتيکا" data-language-autonym="گیلکی" data-language-local-name="Gilaki" class="interlanguage-link-target"><span>گیلکی</span></a></li><li class="interlanguage-link interwiki-gu mw-list-item"><a href="https://gu.wikipedia.org/wiki/%E0%AA%AE%E0%AA%A3%E0%AA%95%E0%AA%BE%E0%AA%98%E0%AB%8B%E0%AA%A1%E0%AB%80" title="મણકાઘોડી – Gujarati" lang="gu" hreflang="gu" data-title="મણકાઘોડી" data-language-autonym="ગુજરાતી" data-language-local-name="Gujarati" class="interlanguage-link-target"><span>ગુજરાતી</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%97%D7%A9%D7%91%D7%95%D7%A0%D7%99%D7%99%D7%94" title="חשבונייה – Hebrew" lang="he" hreflang="he" data-title="חשבונייה" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%97%E0%A4%BF%E0%A4%A8%E0%A4%A4%E0%A4%BE%E0%A4%B0%E0%A4%BE" title="गिनतारा – Hindi" lang="hi" hreflang="hi" data-title="गिनतारा" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Abak" title="Abak – Croatian" lang="hr" hreflang="hr" data-title="Abak" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Abakusz" title="Abakusz – Hungarian" lang="hu" hreflang="hu" data-title="Abakusz" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B1%D5%A2%D5%A1%D5%AF_(%D5%BF%D5%A1%D5%AD%D5%BF%D5%A1%D5%AF)" title="Աբակ (տախտակ) – Armenian" lang="hy" hreflang="hy" data-title="Աբակ (տախտակ)" data-language-autonym="Հայերեն" data-language-local-name="Armenian" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Abaco" title="Abaco – Interlingua" lang="ia" hreflang="ia" data-title="Abaco" data-language-autonym="Interlingua" data-language-local-name="Interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Swipoa" title="Swipoa – Indonesian" lang="id" hreflang="id" data-title="Swipoa" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Abako" title="Abako – Ido" lang="io" hreflang="io" data-title="Abako" data-language-autonym="Ido" data-language-local-name="Ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Talnagrind" title="Talnagrind – Icelandic" lang="is" hreflang="is" data-title="Talnagrind" data-language-autonym="Íslenska" data-language-local-name="Icelandic" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Abaco" title="Abaco – Italian" lang="it" hreflang="it" data-title="Abaco" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%A2%E3%83%90%E3%82%AB%E3%82%B9" title="アバカス – Japanese" lang="ja" hreflang="ja" data-title="アバカス" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jam mw-list-item"><a href="https://jam.wikipedia.org/wiki/Abakos" title="Abakos – Jamaican Creole English" lang="jam" hreflang="jam" data-title="Abakos" data-language-autonym="Patois" data-language-local-name="Jamaican Creole English" class="interlanguage-link-target"><span>Patois</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Simpoa" title="Simpoa – Javanese" lang="jv" hreflang="jv" data-title="Simpoa" data-language-autonym="Jawa" data-language-local-name="Javanese" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%90%E1%83%91%E1%83%90%E1%83%99%E1%83%98" title="აბაკი – Georgian" lang="ka" hreflang="ka" data-title="აბაკი" data-language-autonym="ქართული" data-language-local-name="Georgian" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kaa mw-list-item"><a href="https://kaa.wikipedia.org/wiki/Abakus" title="Abakus – Kara-Kalpak" lang="kaa" hreflang="kaa" data-title="Abakus" data-language-autonym="Qaraqalpaqsha" data-language-local-name="Kara-Kalpak" class="interlanguage-link-target"><span>Qaraqalpaqsha</span></a></li><li class="interlanguage-link interwiki-ki mw-list-item"><a href="https://ki.wikipedia.org/wiki/Abacus" title="Abacus – Kikuyu" lang="ki" hreflang="ki" data-title="Abacus" data-language-autonym="Gĩkũyũ" data-language-local-name="Kikuyu" class="interlanguage-link-target"><span>Gĩkũyũ</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA" title="Абак – Kazakh" lang="kk" hreflang="kk" data-title="Абак" data-language-autonym="Қазақша" data-language-local-name="Kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-km mw-list-item"><a href="https://km.wikipedia.org/wiki/%E1%9E%80%E1%9F%92%E1%9E%94%E1%9E%B6%E1%9E%85%E1%9F%8B%E1%9E%82%E1%9E%B7%E1%9E%8F%E1%9E%9B%E1%9F%81%E1%9E%81" title="ក្បាច់គិតលេខ – Khmer" lang="km" hreflang="km" data-title="ក្បាច់គិតលេខ" data-language-autonym="ភាសាខ្មែរ" data-language-local-name="Khmer" class="interlanguage-link-target"><span>ភាសាខ្មែរ</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%85%E0%B2%AC%E0%B3%8D%E0%B2%AF%E0%B2%BE%E0%B2%95%E0%B2%B8%E0%B3%8D%E2%80%8C" title="ಅಬ್ಯಾಕಸ್‌ – Kannada" lang="kn" hreflang="kn" data-title="ಅಬ್ಯಾಕಸ್‌" data-language-autonym="ಕನ್ನಡ" data-language-local-name="Kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A3%BC%ED%8C%90" title="주판 – Korean" lang="ko" hreflang="ko" data-title="주판" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ks mw-list-item"><a href="https://ks.wikipedia.org/wiki/%DA%AF%D9%90%D9%86%D8%AA%D8%A7%D8%B1%D9%95" title="گِنتارٕ – Kashmiri" lang="ks" hreflang="ks" data-title="گِنتارٕ" data-language-autonym="कॉशुर / کٲشُر" data-language-local-name="Kashmiri" class="interlanguage-link-target"><span>कॉशुर / کٲشُر</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA_(%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B0)" title="Абак (математика) – Kyrgyz" lang="ky" hreflang="ky" data-title="Абак (математика)" data-language-autonym="Кыргызча" data-language-local-name="Kyrgyz" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Abacus" title="Abacus – Latin" lang="la" hreflang="la" data-title="Abacus" data-language-autonym="Latina" data-language-local-name="Latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lfn mw-list-item"><a href="https://lfn.wikipedia.org/wiki/Abaco" title="Abaco – Lingua Franca Nova" lang="lfn" hreflang="lfn" data-title="Abaco" data-language-autonym="Lingua Franca Nova" data-language-local-name="Lingua Franca Nova" class="interlanguage-link-target"><span>Lingua Franca Nova</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/T%C3%A8lraam" title="Tèlraam – Limburgish" lang="li" hreflang="li" data-title="Tèlraam" data-language-autonym="Limburgs" data-language-local-name="Limburgish" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lo mw-list-item"><a href="https://lo.wikipedia.org/wiki/%E0%BA%A5%E0%BA%B9%E0%BA%81%E0%BA%84%E0%BA%B4%E0%BA%94" title="ລູກຄິດ – Lao" lang="lo" hreflang="lo" data-title="ລູກຄິດ" data-language-autonym="ລາວ" data-language-local-name="Lao" class="interlanguage-link-target"><span>ລາວ</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Abakas" title="Abakas – Lithuanian" lang="lt" hreflang="lt" data-title="Abakas" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Skait%C4%ABk%C4%BCi" title="Skaitīkļi – Latvian" lang="lv" hreflang="lv" data-title="Skaitīkļi" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A1%D0%BC%D0%B5%D1%82%D0%B0%D0%BB%D0%BA%D0%B0" title="Сметалка – Macedonian" lang="mk" hreflang="mk" data-title="Сметалка" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AE%E0%B4%A3%E0%B4%BF%E0%B4%9A%E0%B5%8D%E0%B4%9A%E0%B4%9F%E0%B5%8D%E0%B4%9F%E0%B4%82" title="മണിച്ചട്ടം – Malayalam" lang="ml" hreflang="ml" data-title="മണിച്ചട്ടം" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%A1%D0%B0%D0%BC%D0%BF%D0%B8%D0%BD" title="Сампин – Mongolian" lang="mn" hreflang="mn" data-title="Сампин" data-language-autonym="Монгол" data-language-local-name="Mongolian" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Sempoa" title="Sempoa – Malay" lang="ms" hreflang="ms" data-title="Sempoa" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mwl mw-list-item"><a href="https://mwl.wikipedia.org/wiki/%C3%81baco" title="Ábaco – Mirandese" lang="mwl" hreflang="mwl" data-title="Ábaco" data-language-autonym="Mirandés" data-language-local-name="Mirandese" class="interlanguage-link-target"><span>Mirandés</span></a></li><li class="interlanguage-link interwiki-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/L%C5%ABi-pia%CC%8Dt:S%C7%B9g-p%C3%B4a%E2%81%BF" title="Lūi-pia̍t:Sǹg-pôaⁿ – Minnan" lang="nan" hreflang="nan" data-title="Lūi-pia̍t:Sǹg-pôaⁿ" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%85%E0%A4%AC%E0%A4%BE%E0%A4%95%E0%A4%B8" title="अबाकस – Nepali" lang="ne" hreflang="ne" data-title="अबाकस" data-language-autonym="नेपाली" data-language-local-name="Nepali" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Abacus_(rekentuig)" title="Abacus (rekentuig) – Dutch" lang="nl" hreflang="nl" data-title="Abacus (rekentuig)" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Kuleramme" title="Kuleramme – Norwegian Nynorsk" lang="nn" hreflang="nn" data-title="Kuleramme" data-language-autonym="Norsk nynorsk" data-language-local-name="Norwegian Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Abakus_(kuleramme)" title="Abakus (kuleramme) – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Abakus (kuleramme)" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%85%E0%A8%AC%E0%A9%88%E0%A8%95%E0%A8%B8" title="ਅਬੈਕਸ – Punjabi" lang="pa" hreflang="pa" data-title="ਅਬੈਕਸ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="Punjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Abakus_(liczyd%C5%82o)" title="Abakus (liczydło) – Polish" lang="pl" hreflang="pl" data-title="Abakus (liczydło)" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/%C3%80baco" title="Àbaco – Piedmontese" lang="pms" hreflang="pms" data-title="Àbaco" data-language-autonym="Piemontèis" data-language-local-name="Piedmontese" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%DA%AF%D9%86%D8%AA%D8%A7%D8%B1%D8%A7" title="گنتارا – Western Punjabi" lang="pnb" hreflang="pnb" data-title="گنتارا" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/%C3%81baco" title="Ábaco – Portuguese" lang="pt" hreflang="pt" data-title="Ábaco" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Abac" title="Abac – Romanian" lang="ro" hreflang="ro" data-title="Abac" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA" title="Абак – Russian" lang="ru" hreflang="ru" data-title="Абак" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Badduttuleri" title="Badduttuleri – Sicilian" lang="scn" hreflang="scn" data-title="Badduttuleri" data-language-autonym="Sicilianu" data-language-local-name="Sicilian" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D8%A2%D8%A8%D8%A7%DA%AA%D8%B3" title="آباڪس – Sindhi" lang="sd" hreflang="sd" data-title="آباڪس" data-language-autonym="سنڌي" data-language-local-name="Sindhi" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Abakus_(ra%C4%8Dunanje)" title="Abakus (računanje) – Serbo-Croatian" lang="sh" hreflang="sh" data-title="Abakus (računanje)" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croatian" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Abacus" title="Abacus – Simple English" lang="en-simple" hreflang="en-simple" data-title="Abacus" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Abakus_(po%C4%8D%C3%ADtacia_tabu%C4%BEka)" title="Abakus (počítacia tabuľka) – Slovak" lang="sk" hreflang="sk" data-title="Abakus (počítacia tabuľka)" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Abak" title="Abak – Slovenian" lang="sl" hreflang="sl" data-title="Abak" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Abakusi" title="Abakusi – Albanian" lang="sq" hreflang="sq" data-title="Abakusi" data-language-autonym="Shqip" data-language-local-name="Albanian" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA%D1%83%D1%81_(%D1%80%D0%B0%D1%87%D1%83%D0%BD%D0%B0%D1%9A%D0%B5)" title="Абакус (рачунање) – Serbian" lang="sr" hreflang="sr" data-title="Абакус (рачунање)" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Sipoah" title="Sipoah – Sundanese" lang="su" hreflang="su" data-title="Sipoah" data-language-autonym="Sunda" data-language-local-name="Sundanese" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Abakus" title="Abakus – Swedish" lang="sv" hreflang="sv" data-title="Abakus" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Abakasi" title="Abakasi – Swahili" lang="sw" hreflang="sw" data-title="Abakasi" data-language-autonym="Kiswahili" data-language-local-name="Swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%8E%E0%AE%A3%E0%AF%8D%E0%AE%9A%E0%AE%9F%E0%AF%8D%E0%AE%9F%E0%AE%AE%E0%AF%8D" title="எண்சட்டம் – Tamil" lang="ta" hreflang="ta" data-title="எண்சட்டம்" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%85%E0%B0%AC%E0%B0%BE%E0%B0%95%E0%B0%B8%E0%B1%8D" title="అబాకస్ – Telugu" lang="te" hreflang="te" data-title="అబాకస్" data-language-autonym="తెలుగు" data-language-local-name="Telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA" title="Абак – Tajik" lang="tg" hreflang="tg" data-title="Абак" data-language-autonym="Тоҷикӣ" data-language-local-name="Tajik" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%A5%E0%B8%B9%E0%B8%81%E0%B8%84%E0%B8%B4%E0%B8%94" title="ลูกคิด – Thai" lang="th" hreflang="th" data-title="ลูกคิด" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Abakus" title="Abakus – Tagalog" lang="tl" hreflang="tl" data-title="Abakus" data-language-autonym="Tagalog" data-language-local-name="Tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Abak%C3%BCs" title="Abaküs – Turkish" lang="tr" hreflang="tr" data-title="Abaküs" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%90%D0%B1%D0%B0%D0%BA_(%D1%80%D0%B0%D1%85%D1%96%D0%B2%D0%BD%D0%B8%D1%86%D1%8F)" title="Абак (рахівниця) – Ukrainian" lang="uk" hreflang="uk" data-title="Абак (рахівниця)" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%DA%AF%D9%86%D8%AA%D8%A7%D8%B1%D8%A7" title="گنتارا – Urdu" lang="ur" hreflang="ur" data-title="گنتارا" data-language-autonym="اردو" data-language-local-name="Urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Abak" title="Abak – Uzbek" lang="uz" hreflang="uz" data-title="Abak" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Uzbek" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/B%C3%A0n_t%C3%ADnh" title="Bàn tính – Vietnamese" lang="vi" hreflang="vi" data-title="Bàn tính" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Abacus" title="Abacus – Waray" lang="war" hreflang="war" data-title="Abacus" data-language-autonym="Winaray" data-language-local-name="Waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%AE%97%E7%9B%98" title="算盘 – Wu" lang="wuu" hreflang="wuu" data-title="算盘" data-language-autonym="吴语" data-language-local-name="Wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-xh mw-list-item"><a href="https://xh.wikipedia.org/wiki/I-abacus" title="I-abacus – Xhosa" lang="xh" hreflang="xh" data-title="I-abacus" data-language-autonym="IsiXhosa" data-language-local-name="Xhosa" class="interlanguage-link-target"><span>IsiXhosa</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%AE%97%E7%9B%98" title="算盘 – Chinese" lang="zh" hreflang="zh" data-title="算盘" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E7%AE%97%E7%9B%A4" title="算盤 – Literary Chinese" lang="lzh" hreflang="lzh" data-title="算盤" data-language-autonym="文言" data-language-local-name="Literary Chinese" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/S%C7%B9g-p%C3%B4a%E2%81%BF" title="Sǹg-pôaⁿ – Minnan" lang="nan" hreflang="nan" data-title="Sǹg-pôaⁿ" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%AE%97%E7%9B%A4" title="算盤 – Cantonese" lang="yue" hreflang="yue" data-title="算盤" data-language-autonym="粵語" data-language-local-name="Cantonese" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q6423154#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </nav> </div> </div> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 4 September 2024, at 14:45.</li> <li id="footer-info-copyright">Files are available under licenses specified on their description page. All structured data from the file namespace is available under the <a rel="nofollow" class="external text" href="https://creativecommons.org/publicdomain/zero/1.0/">Creative Commons CC0 License</a>; all unstructured text is available under the <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-ShareAlike License</a>; additional terms may apply. By using this site, you agree to the <a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use">Terms of Use</a> and the <a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy Policy</a>.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Commons:Welcome">About Wikimedia Commons</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Commons:General_disclaimer">Disclaimers</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/commons.wikimedia.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-mobileview"><a href="//commons.m.wikimedia.org/w/index.php?title=Category:Abacus&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobile view</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> <script>(RLQ=window.RLQ||[]).push(function(){mw.log.warn("This page is using the deprecated ResourceLoader module \"codex-search-styles\".\n[1.43] Use a CodexModule with codexComponents to set your specific components used: https://www.mediawiki.org/wiki/Codex#Using_a_limited_subset_of_components");mw.config.set({"wgHostname":"mw-web.codfw.main-5ddd465f49-x9grg","wgBackendResponseTime":385,"wgPageParseReport":{"limitreport":{"cputime":"0.283","walltime":"0.388","ppvisitednodes":{"value":2987,"limit":1000000},"postexpandincludesize":{"value":90348,"limit":2097152},"templateargumentsize":{"value":2697,"limit":2097152},"expansiondepth":{"value":8,"limit":100},"expensivefunctioncount":{"value":3,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":3363,"limit":5000000},"entityaccesscount":{"value":10,"limit":400},"timingprofile":["100.00% 337.642 1 -total"," 77.39% 261.312 1 Template:Wikidata_Infobox"," 70.83% 239.154 1 Template:Wikidata_Infobox/core"," 22.55% 76.147 1 Template:On_Wikipedia"]},"scribunto":{"limitreport-timeusage":{"value":"0.188","limit":"10.000"},"limitreport-memusage":{"value":2219134,"limit":52428800}},"cachereport":{"origin":"mw-web.codfw.main-f69cdc8f6-gxw57","timestamp":"20241122204131","ttl":2592000,"transientcontent":false}}});});</script> </body> </html>