Ancient Calculator-Abacus

Daily Prompt: Ancient

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Demonstration and Illustrated by Miriam Hurdle

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14 thoughts on “Ancient Calculator-Abacus

    • I’m sorry. I don’t use ‘regular’ calculator any more. I just use computer software to do most of my calculation. I just had a big assumption. BTW, do you know how to do multiplication and division with abacus? I learned a little bit, but forgot how to do it.

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