Question

Which statement best explains the value of 18 − (−5)?

The additive inverse of −5 is +5, so 18 − (−5) = 23.
The additive inverse of −5 is −5, so 18 − (−5) = 23.
The additive inverse of −5 is −5, so 18 − (−5) = 13.
The additive inverse of −5 is +5, so 18 − (−5) = 13.

Answer 1

The first option, b/c the A.I of -5 would be +5, therefore 18--5, which is 18+5, would be 23.

Answer 2

The additive inverse of −5 is +5, so 18 − (−5) = 23.