Subtraction is Reverse of Addition

We know that counting forward means addition and counting backward means subtraction.

Let us see the following example on the number line.

$Subtraction is Reverse of Addition$

We can say that subtraction is the inverse of addition.

For every addition sentence there are two corresponding subtraction sentences.

Look at the following examples.

$6 + 2 = 8$	or	$2 + 6 = 8$
6 + 2 = 8		2 + 6 = 8

Subtraction facts for the above addition sentences are:

$8 - 2 = 6$	or	$8 - 6 = 2$
8 - 2 = 6		8 - 6 = 2

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