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â¢ ADDITIVE INVERSE (noun) The noun ADDITIVE INVERSE has 1 sense: 1. (mathematics) one of a pair of numbers whose sum is zero; the additive inverse of -5 is +5. Familiarity information: ADDITIVE INVERSE used as a noun is very rare. Dictionary entry details. â¢ ADDITIVE INVERSE (noun)
We notice that the result of combining a number and its opposite is zero. This motivates the following formal definition. Additive Inverse: For every integer n, there is a unique integer m such that n + m = m + n = 0. The integer m is called the additive inverse of n. This property of integers is called the inverse property for integer addition. Examples: Find the additive inverse for each of the following integers.