How can a number line help you add integers?

Question

Autumn Arnold · Accepted Answer

Please see below.

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.

Nova Allen · Answer

undefined A number line can help you add integers by providing a visual representation of the numbers and their positions relative to each other. To add integers using a number line, you start by locating the first number on the number line. Then, you move to the right if the integer is positive or to the left if it is negative, according to the value of the second integer you want to add. The distance you move represents the magnitude of the second integer. Finally, you find the resulting sum by identifying the point where you end up after moving the appropriate distance.