How do you simplify #65 + -5#?

1 Answer
Jan 30, 2016



re white as #(65)+(-5)#

The plus sign can be considers as the action 'Put with then count' from where you are on the number line towards the right. (+ve direction).

The minus sign can be considered as 'change direction of count'

So the + is first telling you to count to the right on the number line.
The we have the minus which is saying "now change the direction of count on the number line.

Put all this together and you end up with: