The operation that reverses the effect of another operation.
Example:
Addition & Subtraction are Inverse Operations.
Start with 7, then add 3 we get 10, now subtract 3, and we get back to 7.
Another:
Example: Multiplication & Division are inverse operations.
Start with 6, multiply by 2, we get 12, now divide by 2, and we get back to 6.
Hope this helps!!!!!!!