black wooden abacus with beads table |
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| navigate by keyword : abacus wooden black beads table counting tool traditional asia calculator arithmetic operations math mathematics addition subtraction multiplication division chinese japanese korean history culture education learning antique vintage old classic design craftsmanship simple effective |
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| A black wooden abacus with black beads rests on a wooden table. The abacus is a traditional counting tool that was commonly used in Asia before the advent of calculators. It is a simple and effective way to perform basic arithmetic operations. |
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