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Multiplication table
In mathematics, ancient Egyptian multiplication (also known as Egyptian multiplication, Ethiopian multiplication, Russian multiplication, or peasant multiplication), one of two multiplication methods used by scribes, is a systematic method for multiplying two numbers that does not require the multiplication table, only the ability to multiply and divide by 2, and to add.
30,561 10 3,G81 20 Ă· Ă· Ă· 61 10 31 20 = = = 501 10 151 20 30,561 10 Ă· 61 10 = 501 10 3,G81 20 Ă· 31 20 = 151 20 Ă· = (black) The divisor goes into the first two digits of the dividend one time, for a one in the quotient. (red) fits into the next two digits once (if rotated), so the next digit in the quotient is a rotated one (that is, a five). (blue) The last two digits are matched once for ...
Multiplication - Wikipedia ... Multiplication
Mathematics education in the United States
Mathematics education
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