crespojonnierjovzkrv crespojonnierjovzkrv

09-09-2017
Mathematics

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Explain how you would estimate to subtract 189 from 643

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JustKThings JustKThings

09-09-2017

You would round both numbers and subtract. For example 189 can round to 200 and 643 would round to 600. Now just subtract, 600-200=400

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