Estimate 9272 – 28 by first rounding each number so that it has only 1 nonzero digit.

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Estimate 9272 – 28 by first rounding each number so that it has only 1 nonzero digit.

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Đan Thu 5 years 2021-08-15T21:19:58+00:00 1 Answers 17 views 0

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  1. hongcuc2
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    2021-08-15T21:21:38+00:00
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    Answer:

    8970

    Step-by-step explanation:

    In order to round 9272 so that it has only 1 nonzero digit, look at the hundred digit, If the number is greater or equal to 5, add 1 to the thousand figure. If this is not the case, add zero

    The hundred digit is 2 which is less than 5, so 0 is added to 9. the number becomes 9000

    In order to round 28 so that it has only 1 nonzero digit, look at the units digit, If the number is greater or equal to 5, add 1 to the tens figure. If this is not the case, add zero

    The units digit is greater than 5, so 1 would be added to tens digit. the number becomes 30

    9000 – 30 = 8970

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