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A mechanical counting device consisting of a frame holding a series of parallel rods on each of which beads are strung. Each bead represents a counting unit, and each rod a place value. The primary purpose of the abacus is not to perform actual computations, but to provide a quick means of storing numbers during a calculation. Abaci were used by the Japanese and Chinese, as well as the Romans.
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Description, Made of premium quality wood material, this early learning counting educational toy kit is safe and durable for kids playing with. Let
1 Set Wooden Educational Abacus Children's Calculation Toy Math Learning Tools