What's the News: Most of us need everyone to stop talking when we perform mental math. But for children trained to do math visually with a "mental abacus," verbal disturbances roll off their backs, ...

KARACHI: Children lined the stage, making fists like they were ready for a fight. With goofy smiles on their faces, they looked on to their parents in the audience as the teacher read a series of ...

This article Boost your mental math speed and accuracy with these effective abacus tricks. This practical guide explains fundamental techniques like direct addition and subtraction using complements ...

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 ...