# 3.15: Decimal Rounding to Estimate Sums and Differences

Difficulty Level: At Grade Created by: CK-12
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### Vocabulary Language: English

TermDefinition
Difference The result of a subtraction operation is called a difference.
Estimate To estimate is to find an approximate answer that is reasonable or makes sense given the problem.
Sum The sum is the result after two or more amounts have been added together.

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