Kids Doing Math : Multiplication of big numbers

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Uploaded by on Jun 9, 2011

In this video, Rakean (9 years old) explains how to multiply two repunits. Repunits are numbers where their digits completely consist of 1. He will discuss how to find the pattern of multiplying two repunits. At the end he show to to multiply to repunist hat have 13 digits.

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Education

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Standard YouTube License

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  • smart kid :)

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