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 ...

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, ...

Event brought together over 6,000 students from 11 countries, all tasked with solving 300 advanced mathematical problems within just 11 minutes Once perceived as intimidating and tough, mathematics ...

China's Zhusuan or the knowledge and practice of arithmetic calculation using an abacus, has been nominated by UNSECO for competition to be listed as World Intangible Cultural Heritage. The final ...

If you have picked up an abacus from a thrift store and watched your toddler play with the beads, like I have, and wondered if that's all there is to it, read on. Using an abacus ("soroban"), that ...

Chinese Zhusuan is a time-honoured traditional method of performing mathematical calculations with an abacus. Practitioners can perform addition, subtraction, multiplication, division, exponential ...