## Engage NY Eureka Math 1st Grade Module 1 Lesson 31 Answer Key

### Eureka Math Grade 1 Module 1 Lesson 31 Problem Set Answer Key

Make a math drawing, and circle the part you know. Cross out the unknown part.

Complete the number sentence and number bond.

Question 1.

Kate made 7 cookies. Bill ate some. Now, Kate has 5 cookies. How many cookies did Bill eat?

Bill ate _________ cookies.

Answer: Bill ate 2 cookies.

Question 2.

On Monday, Tim had 8 pencils. On Tuesday, he lost some pencils.

On Wednesday, he has 4 pencils. How many pencils did Tim lose?

Tim lost _________ pencils.

Answer: Tim lost 4 pencils.

Question 3.

A store had 6 shirts on the rack. Now, there are 2 shirts on the rack. How many shirts were sold?

________ shirts were sold.

Answer: 4 shirts were sold.

Question 4.

There were 9 children at the park. Some children went inside. Five children stayed. How many children went inside?

_________ children went inside.

Answer: 4 children went inside.

### Eureka Math Grade 1 Module 1 Lesson 31 Exit Ticket Answer Key

Make a math drawing, and circle the part you know. Cross out the unknown part. Complete the number sentence and number bond.

Deb blows up 9 balloons. Some balloons popped. Three balloons are left.

How many balloons popped?

______ balloons popped.

Answer: 6 balloons popped.

### Eureka Math Grade 1 Module 1 Lesson 31 Homework Answer Key

Make a math drawing, and circle the part you know.

Cross out the unknown part.

Complete the number sentence and number bond.

Question 1.

Missy gets 6 presents for her birthday. She unwraps some. Four are still wrapped. How many presents did she unwrap?

Missy unwrapped ________ presents.

Answer: Missy unwrapped 2 presents.

Question 2.

Ann has a box of 8 markers. Some fall on the floor. Six are still in the box. How many markers fell on the floor?

_____ markers fell on the floor.

Answer: 2 markers fell on the floor.

Question 3.

Nick makes 7 cupcakes for his friends. Some cupcakes were eaten. Now, there are 5 left. How many cupcakes were eaten?

_____ cupcakes were eaten.

Answer: 2 cupcakes were eaten.

Question 4.

A dog has 8 bones. He hides some. He still has 5 bones. How many bones are hidden?

_____ bones are hidden.

Answer: 3 bones are hidden.

Question 5.

The cafeteria table can seat 10 students. Some of the seats are taken. Seven seats are empty. How many seats are taken?

_____ seats are taken.

Answer: 3 seats are taken.

Question 6.

Ron has 10 sticks of gum. He gives one stick to each of his friends. Now, he has 3 sticks of gum left. How many friends did Ron share with?

Ron shared with _____ friends.

Answer: Ron shared with 7 friends.