Subtracting Integers

The subtraction of integers is obtained by adding the additive inverse of the subtrahend to the minuend.

a − b = a + (−b)

7 − 5 = 2

7 − (−5) = 7 + 5 = 12

Properties of the Subtraction of Integers

1. Closure:

A − b PerteneceInteger

10 − (5) PerteneceInteger

2. Is not commutative:

a − b ≠ b − a

5 − 2 ≠ 2 − 5