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17 July, 16:10

Estimate then find the sum or difference 8.5+1.8

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  1. 17 July, 17:15
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    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
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