Estimate the sum or difference by first rounding each value to the indicated place value. Then find the actual sum or difference.-603.85 - (-21.75)
round each to the nearest ten
A. Estimate: 580; Actual: 583.1
B. Estimate: -570; Actual: -572.1
C. Estimate: -580; Actual: -582.1
D. Estimate: -570; Actual: -582.1
Answer: C
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Solve the problem.Given a triangle with 
, 
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