## 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.

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.

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.

Question 4.
There were 9 children at the park. Some children went inside. Five children stayed. How many children went inside?

_________ 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.

### 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.

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.

Question 4.
A dog has 8 bones. He hides some. He still has 5 bones. How many bones are hidden?

_____ bones are hidden.