Perform the indicated operations.Estimate by rounding so that there is only one nonzero digit, then find the actual sum.7,039 + 403 + 77,191 =
A. Estimate: 85,000
Actual: 84,633
B. Estimate: 87,400
Actual: 84,633
C. Estimate: 90,000
Actual: 84,633
D. Estimate: 88,400
Actual: 84,659
Answer: B
Mathematics
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