Question
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? \( 32.46-14.189 \) 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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Answer
The actual difference is 18.271.
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Beyond the Answer
To obtain an estimate, we round \(32.46\) to \(32\) and \(14.189\) to \(14\). So, \(32 - 14 = 18\), which is a quick mental calculation! Now, calculating the actual difference: \(32.46 - 14.189 = 18.271\). Comparing both, the estimate of \(18\) is pretty reasonable as it's very close to the actual answer, \(18.271\), indicating our rounding strategy worked well!
