EntityQ620584· pop 33· linked from 161 articlesmental calculationSign in to savearithmetical calculations using only the human brainConnectionssavant syndromeEntityGuinness World RecordsEntityJSTOREntitylist of Dune charactersEntityIndiaCountryIstanbulCityschoolEntityarithmeticEntitymindEntitylightningEntityInternational Standard Book NumberEntityalgorithmEntityadditionEntityAntalyaEntityscience fictionEntitymultiplicationEntitydivisionEntityHaruki MurakamiEntitysubtractionEntitycalculatorEntityCategoriesGames of mental skillMental calculation