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24-11-2014
Mathematics

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How could you use the product of 10x42=420 to find the product of 5x42?

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HolmesNWatson HolmesNWatson

24-11-2014

In this case, it's clear that 5 is half of ten, therefore, you have to divide the first equation in half, giving you 5x42= 210. If it was something such as 20x24, you just work the answer from the multiple of ten. Hope this helpsn

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