Opposite number

number that, when added to the original number, yields zero

In mathematics, the opposite or additive inverse of a number is a number which, when added to , results in 0. The opposite of is .[1][2] For example, −7 is the opposite of 7, because .

The opposite of a positive number is the negative version of the number. The opposite of a negative number is the positive version of the number. The opposite of 0 is 0.

Two opposite numbers have the same absolute value.

Related pagesEdit


  1. Weisstein, Eric W. "Additive Inverse". mathworld.wolfram.com. Retrieved 2020-08-27.
  2. "Additive Inverse". www.learnalberta.ca. Retrieved 2020-08-27.