5th Grade Math: Solving Missing Variables with Operations

Ava has 24 apples. She gives some to her friend. If she has 15 apples left, how many apples did she give away?

• 18

• 5

• 12

• 9

Liam bought 5 packs of stickers. Each pack has the same number of stickers. If he has 35 stickers in total, how many stickers are in each pack?

• 7

• 8

• 5

• 10

A school has 120 students. If 30 students are in the art club, how many students are not in the art club?

• 90

• 100

• 30

• 60

Emma read 45 pages of her book. If she wants to read a total of 100 pages, how many more pages does she need to read?

• 70

• 55

• 30

• 40

Noah has a collection of 80 baseball cards. He gives away some cards to his cousin. If he has 52 cards left, how many cards did he give away?

• 24

• 28

• 30

• 35

Sophia has 60 marbles. She buys some more marbles and now has 85 marbles. How many marbles did she buy?

• 15

• 30

• 40

• 25

A farmer has 150 chickens. If he sells some and has 90 chickens left, how many chickens did he sell?

• 60

• 30

• 75

• 45

Mason has 3 times as many toy cars as his brother. If his brother has 12 toy cars, how many toy cars does Mason have?

• 36

• 30

• 18

• 24

A bakery made 200 cookies. If they sold 75 cookies, how many cookies are left?

• 100

• 200

• 125

• 150

Isabella has 50 stickers. She wants to share them equally among her 5 friends. How many stickers will each friend get?

• 10

• 15

• 5

• 20