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The Abacus by Kaitlyn

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lis lab3

on 12 April 2013

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Transcript of The Abacus by Kaitlyn

The Abacus The Roman abacus had pebbles called calculi which
is where calculus came from. People who use abaci are called
abacists. Most abaci are now made of bamboo frames with beads and wires. Abacus root words came from the Greece word abax, which means dust or sand. The Chinese abacus can do addition, subtraction, multiplication, division, obtain square roots, and cubic roots. The End By Kaitlyn Hagadorn It was invented in 2400 B.C. in Babylonia.
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