Question

Define additive identity and additive inverse. Give an example.
[2 MARKS]

Answer 1

Definition: 1 Mark
Example: 1 Mark

When we add zero to any whole number, we will get the same whole number as result. Hence, zero is known as additive identity.

For example, 5 + 0 = 0, here 0 is the additive identity

The additive inverse of a number is the number that when added, yields zero. To find the additive inverse of a number, we multiply the given number by -1.
For example, if we want to find the additive inverse of the number 5 we multiply it by -1.
$5\times (-1)=(-5)$
So, -5 is the additive inverse of the number 5.