Estimate then find the sum or difference 8.5+1.8

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asked Dec 8, 2016 74.1k views

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Kevin Scharnhorst · Answer 1 · 2016-12-14T22:48:27+0000

Estimating usually means rounding to the nearest whole number to make it so that you can do the math in your head.
So, 8.5 becomes 9, and 1.8 becomes 2.
The sum would then be 11
And the difference is 7

Estimate then find the sum or difference 8.5+1.8

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