Question
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Obtain an estimate for the following computation by rounding the numbers so that the resulting arithmetic can easily be performed by hand or in your head. Then, use a calculator to perform the
computation. How reasonable is your estimate when compared to the actual answer?

An estimate of the difference is 18 . (Type a whole number.)
The actual difference is

Ask by Sullivan Moran. in the United States
Jan 23,2025

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Tutor-Verified Answer

Answer

The actual difference is 18.271.

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Beyond the Answer

To obtain an estimate, we round to and to . So, , which is a quick mental calculation!
Now, calculating the actual difference:
.
Comparing both, the estimate of is pretty reasonable as it’s very close to the actual answer, , indicating our rounding strategy worked well!

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