Adding and Subtracting Integers on a Number Line

1. Sarah has 3 apples. She gives away 5 apples to her friends. How many apples does she have now? Use a number line to help you add.

• -2

• 5

• 0

• 3

2. A submarine is 4 meters below sea level. It rises 6 meters. What is its new position? Show this on a number line.

• 4 meters below sea level

• 2 meters above sea level

• 6 meters above sea level

• 2 meters below sea level

3. Tom has 7 toy cars. He loses 9 toy cars. How many toy cars does he have left? Use a number line to find the answer.

• 0

• 7

• 2

• 5

4. A bird is flying at 2 meters above ground. It then flies down 5 meters. What is its new height? Illustrate this on a number line.

• 0 meters

• -1 meter

• 2 meters

• -3 meters

5. Lisa has 10 stickers. She gives 3 stickers to her friend and then receives 5 stickers back. How many stickers does she have now? Use a number line to solve.

• 7

• 12

• 8

• 10

6. A hiker is at a point 3 miles above sea level. He descends 8 miles. What is his new elevation? Show this on a number line.

• 5 miles

• -3 miles

• 1 mile

• -5 miles

7. There are 6 fish in a tank. If 4 fish swim away, how many fish are left in the tank? Use a number line to help you add.

• 4

• 6

• 2

• 3

8. A temperature starts at 5 degrees Celsius. It drops by 10 degrees. What is the new temperature? Use a number line to find the answer.

• 0 degrees Celsius

• -5 degrees Celsius

• -10 degrees Celsius

• 5 degrees Celsius

9. A treasure chest is buried 2 feet underground. If it is dug up and moved 3 feet above ground, where is it now? Show this on a number line.

• 2 feet underground

• 1 foot below ground

• 1 foot above ground

• 3 feet above ground

10. Emma has 12 balloons. If 15 balloons pop, how many balloons does she have left? Use a number line to help you solve this problem.

• 12

• 5

• 3

• 0