Seudónimo Seudónimo

21-12-2016
Mathematics

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explain why you should record a 1 in the tens when you regroup in an addition problem

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Аноним Аноним

21-12-2016

you put a one becuse it repusents a 10 and your tencly adding a 10

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26-12-2016

You have to put the one first

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