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01-12-2015
Mathematics

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explain how to find 40 times 80 using mental math

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Аноним Аноним

01-12-2015

First you can use simple multiplication. Take out the zeroes from 40 and 80. You get 4 and 8. 4 multipled by 8 is 32. so that means that 80 times 40 is 320

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