42+36= use rounding or compatible numbers to estimate the sum

asked May 27, 2017 197k views

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5 votes

42 rounds to 40
36 rounds to 40
40+40=80
The exact answer is 78

Ptg answered May 28, 2017

by Ptg

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7 votes

when rounding they both end up as 40 so 40 plus 40 is 80 and that's ur answer

Will Madison answered May 31, 2017

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