Asked by Kelly

Melvin estimated 645 + 322 by adding 600 + 300. Is his estimated sum an over or under estimate?

Ty
Answered by Ms. Sue
I'd guess that his estimate is less than the original answer since 45 is more than 22.

Answered by Kate
yes i would agree that is would be less than since he rounded down for both
Answered by Abdul
under estimate
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