# Opposite number facts for kids

In mathematics, **opposite number** or **additive inverse** of any number is a number *n* which, if added to *n*, results in 0 (the identity element of addition). The opposite number for *n* is written as *−n*. For example, −7 is the opposite number of 7, because .

For positive numbers, the opposite number is simply the negative version of the number. For negative numbers, the opposite number is the positive version of the number.

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Opposite number Facts for Kids. *Kiddle Encyclopedia.*