Adding Integers on a Number Line

Adding Integers on a Number Line

by Sara McCullough

Multiple Choice

When adding on a number line, which direction do you go?

• Left

• Right

Poll

Do you think adding a negative number would change the direction of addition?

• Yes

• No

​Let's Look at a Number Line!

​How would you find 3 + 5?

​How would you find 3 + (-5)?

​What do you see?

​Let's look at this one!

​How would you solve -5 + 3?

​How would you solve -5 + (-3)?

​What do you notice?

Poll

TRUE OR FALSE: Adding a negative is REALLY subtracting a positive!

• Yes!

• No!

Multiple Choice

Use the number line to solve for the sum.

• -8

• -2

• 8

• 2

Multiple Choice

If you go to positive 3 on the number line, then where would you end up if you added -12 to it?

• 15

• -15

• 9

• -9

Multiple Choice

What addition problem is represented on the number line?

• 4 + 3 = -7

• -4 + (-3) = -7

• -4 + 3 = -1

• 4 - 3 = 1

Multiple Choice

Use the number line shown to solve: 1 + (-9)

• -10

• -8

• 8

• 10