mariabordon mariabordon

07-09-2016
Mathematics

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use rounding or compatible numbers to estimate the difference 359-224

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daguealex daguealex

07-09-2016

359 goes to 360
224 goes to 220
360-220=140
I moved the answer up one then down four the way I moved the original numbers, so 140 is actually down three of the actual answer which must be 143 then

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