ethan04 ethan04

19-09-2016
Mathematics

Answered

Sun-Yi estimated 270+146and got 300.is her estimate reasonable explain

Verified Answer :

19-09-2016

No. Round 146 to 150 and add both 270 and 150. It's 420. So 400 would be more reasonable. 300 is not reasonable because it ain't close.

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