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Estimate then find the sum or difference 8.5+1.8
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1 vote
Estimate then find the sum or difference 8.5+1.8

User Rudu
by
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1 Answer

6 votes
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

User Kevin Scharnhorst
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8.0k points
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