🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTürkçeРусскийالعربيةفارسیहिन्दी한국어中文日本語EntityQ620584· pop 33· linked from 161 articlesmental calculationAlso known as mental math, mental arithmeticarithmetical calculations using only the human brainWikidata factsImageMental calculation at primary school.jpgSources (2)wikidata.orgdocs.openalex.orgvia Wikidata · CC0Available in 30 languagesEspañolFrançaisDeutsch中文日本語РусскийItalianoالعربيةहिन्दीBahasa IndonesiaBasqueConnectionssavant syndromeEntityGuinness World RecordsEntityCategoriesGames of mental skillMental calculation