Sunday, November 1, 2009
Article about the abacus, picture of abacus, the salamis table, counting boards, the chinese abacus, where to buy an abacus, and the history and origins of the abacus, and related links for further study. The abacus was one of the earliest counting devices in Asia and parts of Europe. It is still used today for arithmetic: adding, subtracting, multiplying and dividing.
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