Additive inverse | KidzSearch. Family-friendly safe search for kids.

In mathematics, the opposite or additive inverse of a number \displaystyle{ k } is a number \displaystyle{ n } which, when added to \displaystyle{ k }, results in 0. The opposite of \displaystyle{ a } is \displaystyle{ -a }. For example, −7 is the opposite of 7, because \displaystyle{ 7+-7 = 0 }.

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