Adding and Subtracting: Estimation and Number Lines

Lily has 25 apples. She gives 7 apples to her friend. How many apples does she have left?

• 15

• 18

• 20

• 10

Tom has 15 toy cars. He buys 9 more toy cars. How many toy cars does Tom have now?

• 30

• 24

• 20

• 18

A bakery made 40 cookies. They sold 18 cookies. How many cookies are left?

• 30

• 22

• 25

• 20

Sarah read 12 books this month. She plans to read 5 more books. How many books will she have read in total?

• 17

• 15

• 20

• 10

There are 30 students in a class. If 5 students are absent, how many students are present?

• 25

• 15

• 30

• 20

A farmer has 50 chickens. He sells 20 chickens. How many chickens does he have now?

• 20

• 30

• 40

• 10

Emma has 18 stickers. She finds 7 more stickers. How many stickers does she have altogether?

• 15

• 30

• 25

• 20

In a garden, there are 45 flowers. 10 flowers wilted. How many flowers are still healthy?

• 40

• 35

• 30

• 25

A library has 60 books. They received 15 new books. How many books are in the library now?

• 60

• 80

• 90

• 75

Jake has 100 marbles. He gives 25 marbles to his brother. How many marbles does Jake have left?

• 100

• 80

• 75

• 50