Estimating Sums and Differences: Fun with Addition & Subtraction

Lily has 23 apples. She gives 7 apples to her friend. How many apples does Lily have left?

• 15

• 20

• 16

• 10

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

• 30

• 24

• 18

• 20

A baker made 50 cookies. He sold 18 cookies. How many cookies does he have left?

• 28

• 32

• 40

• 35

Sarah has 30 stickers. She finds 12 more stickers. How many stickers does Sarah have in total?

• 42

• 25

• 35

• 50

There are 45 students in a class. If 10 students go home early, how many students are still in the class?

• 35

• 40

• 25

• 30

Jack has 28 marbles. He loses 5 marbles. How many marbles does Jack have now?

• 20

• 25

• 30

• 23

Emma read 14 books this year. She plans to read 6 more books. How many books will she have read in total?

• 18

• 22

• 20

• 16

A farmer has 60 chickens. He sells 20 chickens. How many chickens does the farmer have left?

• 10

• 40

• 30

• 50

Mia has 18 crayons. She buys a box of 12 more crayons. How many crayons does Mia have now?

• 30

• 15

• 20

• 24

There are 25 birds in a tree. If 10 birds fly away, how many birds are left in the tree?

• 10

• 15

• 5

• 20