Brahmagupta Arithmetic Four fundamental operations (addition, subtraction, multiplication and division) were known to many cultures before Brahmagupta. This current system is based on the Hindu Arabic number system and first appeared in Brahmasphutasiddhanta. Brahmagupta describes the multiplication as thus “The multiplicand is repeated like a string for cattle, as often as there are integrant portionsपढ़ना जारी रखें “Indian Arithmetic was known in Medieval Europe as “Modus Indoram””