When I was a kid learning arithmetic the only visual aid I remember is flash cards. These were useful for memorizing single-digit addition and multiplication, but is memorization really the best ...

Chinese Zhusuan is a time-honoured traditional method of performing mathematical calculations with an abacus. By moving beads along rods, practitioners can perform addition, subtraction, ...

FORT LEE — For 10 seconds, a series of 50 random three-digit numbers flashed on the screen. After another second, abacus master Jeonghee Lee announced she'd finished the mental addition, correctly ...

The abacus can be used to solve basic arithmetic operations such as addition, subtraction, multiplication and division as well as more advanced operations such as square roots and logarithms. The ...

Participants showcased their abacus and mental arithmetic skills in multiple rounds, the problems were based on addition, subtraction, multiplication and division The huge auditorium of Netaji Indoor ...