Addition and Subtraction of Integers

On the number line, positive integers indicate “to the right of zero” and -negative integers indicate “to the left of zero”

To add two integers x and y on a number line, we need to follow the steps listed below:

Step 1: Draw a number line and identify the zero (0)
Step 2: Start from zero and move x units to the right or left depending on the sign of x
Step 3: From there, move y units to the right or left depending on the sign of y

The total number of units from zero along with the direction of movement is the answer

If movement is to the right, then the answer has a positive sign. If movement is to the left, then the answer has a negative sign

On the number line, positive integers indicate “to the right of zero” and negative integers indicate “to the left of zero”

To add two integers x and y on a number line, we need to follow the steps listed below:

Step 1: Draw a number line and identify the zero (0)

Step 2: Start from zero and move x units to the right or left depending on the sign of x

Step 3: From there, move y units to the right or left depending on the sign of y

The total number of units from zero along with the direction of movement is the answer

If movement is to the right, then the answer has a positive sign. If movement is to the left, then the answer has a negative sign