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How to estimate the differene for 371 and 99

How to estimate the differene for 371 and 99-example-1
User Doplano
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2 Answers

7 votes
Fist you round and then subtract. 370 - 100 = 270
User Yassine Guedidi
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2 votes
First you round both to nearest hundred then add your estimate.
User Daniele Tassone
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