> wiki   Explore:images videos games  

Opposite number

KidzSearch Safe Wikipedia for Kids.
Jump to: navigation, search

Opposite number or additive inverse of any number n is a number 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 opposite to 7, because [math]-\!7 + 7 = 0[/math]. You can say that the opposite number of a number, is the negative version of the positive number.

Use absolute value witch means the distance between a number and 0