Japanese Abacus ( Soroban)

Abacus is one of early counting devices that can be calculate for addition, subtraction, multiplication and division.

Saturday, 16 July 2011

Dividing by Two-Digit Numbers or More Numbers

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Example :    552 / 23 = 24    Step 1: Set 552 on GHI, with 1 as the unit rod, and set 23 on AB.   Step 2: Compare the 2 in 23 with the 5...
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Dividing by One-Digit Numbers

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Same as the division, here i use the below notation to represent the rod: Example :     8/ 2 = 4   Step 1: Set the dividend 8 on rod F a...
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