# How can a number line help you add integers?

##### 1 Answer

Apr 29, 2016

Please see below.

#### Explanation:

You can use number line for adding as well as subtracting integers.

For doing this,

- First mark the first integer on the number line.
- Now to add a positive integer to this number, move to the right on the number line from this number.
- In case you have to add a negative integer, move to the left on the number line from this number.
- Subtracting an integer means adding its opposite and hence, if you have to subtract a positive integer from this number, move to the left on the number line from this number.
- But if you have to subtract a negative integer from this number, move to the right on the number line from this number.