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16 January, 20:34

823-242 use rounding or compatible numbers to estimate the difference

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  1. 16 January, 20:51
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    We have to use rounding or compatible numbers to estimate the difference of 823 and 242.

    Since, a quick way to estimate the difference between two numbers is to round each number and then subtract the rounded numbers.

    Therefore, rounding the number 823 to the nearest tens = 820

    Rounding the number 242 to the nearest tens = 240

    The difference between the estimated numbers

    = 820 - 240

    = 580

    Therefore, the estimated difference is 580.
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