Problem

Add or subtract as indicated. Make sure that your answer is reasonable by estimating first...

Add or subtract as indicated. Make sure that your answer is reasonable by estimating first. Give your estimate, and then give the exact answer. See Example and the rules for rounding in this section.

90.527 + 32.43 + 589.83 + 399.327

EXAMPLE Adding and Subtracting Decimals

Add or subtract as indicated.

To avoid errors, attach zeros to make all the numbers the same length.

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Solutions For Problems in Chapter R.2

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