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OpenStudy (anonymous):
Medal First, multiply the numbers to find the exact answer. Then front-end round the numbers and use estimation to determine whether the product is reasonable. 87.88 ✕ 8.31 calculated ? estimated ?
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OpenStudy (studygurl14):
front end rounding: 87.88 --> 88 8.31 --> 8 88(8) = 704
OpenStudy (anonymous):
duckduckgo? :P
OpenStudy (studygurl14):
my fave search engine xP
OpenStudy (studygurl14):
calculated: 730.2828 estimated: 704
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OpenStudy (anonymous):
thank you :)
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