No calculators allowed here — students who receive vision services from the Iowa Educational Services for the Blind and Visually Impaired took part in Iowa's first Abacus Bee on Saturday. The Abacus ...
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 ...
Bardoli (Gujarat) [India], January 8: Brainobrain proudly celebrates a defining global milestone this year, hosting two major international abacus competitions -- the 14th International Brainobrain ...
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