Mastering Addition & Subtraction: Key Info & Estimation

Lily has 12 apples. She gives 4 apples to her friend. How many apples does Lily have left?

• 8

• 6

• 10

• 12

Tom has 15 toy cars. He buys 7 more toy cars. How many toy cars does Tom have now?

• 20

• 25

• 22

• 18

There are 20 birds in a tree. 5 birds fly away. How many birds are still in the tree?

• 15

• 5

• 20

• 10

Sarah has 10 stickers. She finds 8 more stickers. How many stickers does she have in total?

• 12

• 16

• 18

• 20

A farmer has 30 cows. 10 cows are sold. How many cows does the farmer have now?

• 20

• 10

• 25

• 15

Emma has 25 candies. She eats 5 candies. How many candies does she have left?

• 25

• 20

• 15

• 10

In a box, there are 18 crayons. 6 crayons are broken. How many crayons are not broken?

• 10

• 12

• 15

• 8

Jack has 14 marbles. He gives 3 marbles to his sister. How many marbles does Jack have now?

• 15

• 12

• 11

• 10

There are 22 students in a class. 4 students are absent. How many students are present?

• 22

• 18

• 16

• 20

Mia has 9 books. She buys 6 more books. How many books does Mia have altogether?

• 12

• 15

• 21

• 18