1Cademy - What is the additive inverse of a number, and what equation shows this property for any number $$a$$?

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Additive Inverse

Short Answer

What is the additive inverse of a number, and what equation shows this property for any number $a$ ?

Question: What is the additive inverse of a number, and what equation shows this property for any number $a$ ?

Sample answer: The additive inverse of a number is its opposite; adding a number and its opposite gives 0. For any number $a$ , the equation is $a + (-a) = 0$ .

Key points:

Additive inverse means the opposite of a number
Adding a number and its additive inverse results in $0$
Equation: $a + (-a) = 0$

Rubric: Full credit requires stating that the additive inverse is the opposite of a number and giving the equation $a + (-a) = 0$ . Partial credit for only the definition or only the equation.

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Updated 2026-07-11

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