Question

Write the additive inverse (opposite) and work out the sum of the given integers and its additive inverse:

$-215$

Answer 1

Additive Identity & Additive Inverse : For any integer, there exists an integer such that their sum is zero. Each of such numbers is called additive inverse or opposite numbers of the others.

Step 1 : Additive inverse of a negative integer is a positive integer.

Therefore the additive inverse of $-215$ is $215$

Step 2 : Sum of the integer and its additive inverse $=-215+215$

$=0$