Grade 7 math · M.12 · Operations with fractions and decimals
Subtract decimals including negatives
Line up the decimal points to add or subtract. The sign rules are the same as for integers.
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Evaluate: −8.8 − (−2.4)
Answer: -6.4
Evaluate: −7.6 − 8.2
Answer: -15.8
Evaluate: 0.5 − 8.3
Answer: -7.8
Tip: Line up the decimal points to add or subtract. The sign rules are the same as for integers.
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