Subtracting Tens: Estimating Differences with Numbers

Lily has 50 apples. She gives away 20 apples. How many apples does she have left?

• 40

• 10

• 20

• 30

Tom has 80 marbles. He loses 30 marbles. How many marbles does he have now?

• 70

• 60

• 50

• 40

A baker made 70 cookies. He sold 40 cookies. How many cookies are left?

• 20

• 50

• 30

• 10

There are 90 books in the library. If 50 books are checked out, how many books remain?

• 50

• 30

• 40

• 60

Sarah has 60 stickers. She gives 10 stickers to her friend. How many stickers does she have now?

• 60

• 50

• 40

• 30

A toy store had 100 toys. They sold 70 toys. How many toys are still in the store?

• 50

• 10

• 30

• 20

Mark has 40 balloons. He pops 20 balloons. How many balloons does he have left?

• 20

• 25

• 10

• 30

A farmer has 30 cows. He sells 10 cows. How many cows does he have now?

• 10

• 25

• 20

• 15

There are 80 students in a school. If 20 students go home early, how many students are still at school?

• 70

• 40

• 50

• 60

Emma has 70 crayons. She loses 30 crayons. How many crayons does she have left?

• 30

• 50

• 60

• 40