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Estimate using mental math and then calculate the exact sum or difference. Enter the exact sum or difference in the answer fiel...Asked by Anime_Fan0985
Estimate using mental math and then calculate the exact sum or difference. Enter the exact sum or difference in the answer field.
4.817 + 9.099 + 17.008 =
484.603 − 48.198 =
4.817 + 9.099 + 17.008 =
484.603 − 48.198 =
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Answered by
Writeacher
Estimate:
4.817 is very close to 5.0
9.099 is very close to 9.0
17.008 is SUPER close to 17.0
So ... 5 + 9 + 17 = what?
You can do the same for the second set of numbers.
Then simply do the addition (for the first) and subtracion (for the second).
4.817 is very close to 5.0
9.099 is very close to 9.0
17.008 is SUPER close to 17.0
So ... 5 + 9 + 17 = what?
You can do the same for the second set of numbers.
Then simply do the addition (for the first) and subtracion (for the second).
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