Mathematics, 03.08.2019 14:10 zfghiiooi5

Alan used 9 as an estimated for 3 7/10 + 5 4/10. he added and got for the actual sum. is alan's answer reasonable ?

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Alan used 9 as an estimated for 3 7/10 + 5 4/10. he added and got for the actual sum. is alan's answ...

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