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Math Help: Number opposites

Refresh your competency in the various areas of Mathematics.


In this module, you can study how to find the opposite (also called the additive inverse) of a number.


The two-minute video above from Khan Academy shows you how to find the opposite of a number, whether you start with a positive number or a negative number.

Did you know?

The opposite of a negative number is always a positive number.

Study and practice

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Use these search terms to find additional resources:

number opposites
additive inverse

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