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1 vote
Use compatible numbers to estimate 329 + 64=

2 Answers

3 votes
your estimate is 330+ 60=390
answered
User Flyingdutchman
by
7.6k points
4 votes
330+60+? because a compatible number close to 29 is 30 and for 64 it would be 60.Hope this helped.
answered
User Mateus Viccari
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9.1k points

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