3rd Grade Math: Subtraction with Number Lines & Equations

Lily has 15 apples. She gives 7 apples to her friend. How many apples does Lily have left? Write an equation to represent this problem.

• 8

• 6

• 12

• 10

Tom has 20 marbles. He buys 5 more marbles. How many marbles does Tom have now? Write an equation for this situation.

• 30

• 10

• 15

• 25

A baker made 30 cookies. He sold 12 cookies. How many cookies does he have remaining? Use a number line to show your subtraction.

• 25

• 15

• 18

• 20

Sarah has 18 stickers. She finds 9 more stickers. How many stickers does she have in total? Write an equation to solve this problem.

• 30

• 20

• 27

• 15

In a classroom, there are 25 students. If 10 students go to the library, how many students are left in the classroom? Write an equation to represent this situation.

• 20

• 15

• 10

• 5

A farmer has 50 chickens. He sells 15 chickens. How many chickens does he have now? Use a number line to help with your subtraction.

• 40

• 25

• 35

• 45

Emma has 12 toy cars. She receives 8 more toy cars as a gift. How many toy cars does Emma have altogether? Write an equation for this problem.

• 25

• 18

• 15

• 20

There are 40 books on a shelf. If 15 books are taken away, how many books remain on the shelf? Use a number line to show your work.

• 25

• 35

• 20

• 30

Jack has 22 baseball cards. He gives 5 cards to his brother. How many baseball cards does Jack have left? Write an equation to solve this problem.

• 20

• 10

• 17

• 15

A zoo has 60 animals. If 20 animals are added to the zoo, how many animals are there now? Write an equation to represent this situation.

• 60

• 80

• 100

• 40