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Ethiopian multiplication: Difference between revisions

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# In the left-hand column repeatedly halve the last number, discarding any remainders, and write the result below the last in the same column, until you write a value of 1.
# In the right-hand column repeatedly double the last number and write the result below. stop when you add a result in the same row as where the left hand column shows 1.
# Examine the table produced and discard any row where the value in the leftright column is even.
# Sum the values in the right-hand column that remain to produce the result of multiplying the original two numbers together
 
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