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Additive Inverses

Definition of Additive Inverses

The Additive Inverse of a number is the opposite of the number.

A number and its opposite add up to give zero.
They are called additive inverses of each other.

Examples of Additive Inverses

  • The additive inverse of 7 is - 7.
  • 7 + (- 7) = 0
  • The additive inverse of - 2 is 2.
  • - 2 + 2 = 0

Video Examples: Additive Inverses


Solved Example on Additive Inverses

Ques:
Which of the following is the additive inverse of the sum of 5 and 8?

Choices:

  • A. - 13
  • B. - 5
  • C. - 8
  • D. - 3

Correct Answer: A

Solution:

  • Step 1: The sum of 5 and 8 is 13.
  • Step 2: The additive inverse of 13 is - 13.

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