Chinese Abacus

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Two Chinese men use the abacus to calculate for their business. “The abacus was one of the earliest aids to calculation.” -Hill, 1921

Keywords

China, Chinese, laundry, business, counting, math, calculator, Abacus, adding, math tool, calculate

Galleries

China, Miscellaneous Math Tools

Source

Hill, Henry Chase The Wonder Book of Knowledge (Philadelphia, PA: John C. Winston Company, 1921)

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