Estimate the sum or difference by first rounding each value to the indicated place value. Then find the actual sum or difference.-704.85 - (-51.93)
round each to the nearest ten
A. Estimate: 650; Actual: 653.92
B. Estimate: -640; Actual: -642.92
C. Estimate: -640; Actual: -652.92
D. Estimate: -650; Actual: -652.92
Answer: D
Mathematics
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A. 
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