When 11-year-old Priyanshi Somani multiplies strings of 10-digit numbers or finds the square root of a six-digit number, she doesn’t use a calculator or even pencil and paper. Instead, like other ...
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, that ancient, no-batteries-required, bead-based calculator, is making a comeback in after-school programs across Canada. The schools, which are modelled after programs common across India ...
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