Abacus Junior - Demo Class
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Demo for Junior Level Abacus : 3 month course An abacus is a calculation tool used by...
Demo for Junior Level Abacus : 3 month course
An abacus is a calculation tool used by sliding counters along rods or grooves, used to perform mathematical functions. In addition to calculating the basic functions of addition, subtraction, multiplication and division, the abacus can calculate roots up to the cubic degree.
