Sun-Yi estimated 270 + 146 and got 320. Is her estimate reasonable? Explain.

Elleanor Mckenzie 2021-02-02 Answered
Sun-Yi estimated 270 + 146 and got 320. Is her estimate reasonable? Explain.
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Usamah Prosser
Answered 2021-02-03 Author has 86 answers
No. 146 can be estimated as 150 so that 270+150=420, not 320. Sun-Yi forgot to carry over 1 to the hundreds digit.
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Jeffrey Jordon
Answered 2021-12-11 Author has 2064 answers

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