khalid12345 khalid12345

01-03-2016
Mathematics

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explain how solve 8 + 2 can help you solve 80 + 20

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Аноним Аноним

01-03-2016

8+2 is 10. 80+20 is 100. Since you added 2 zeros total, then the second sum will have two more zeros, etc.

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01-03-2016

Its helping you get use to adding smaller numbers that is equivalent to bigger numbers

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