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InterviewSolution
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What does abacus consist of ? |
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Answer» An abacus consists of a wooden FRAME, rods, and beads. Each ROD REPRESENTS a different place value—ones, tens, HUNDREDS, thousands, and so on. Each bead represents a number, usually 1 or 5, and can be MOVED along the rods. Addition and subtraction can easily be performed by moving beads along the wires of the abacus. |
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