## Engage NY Eureka Math 2nd Grade Module 7 Lesson 22 Answer Key

### Eureka Math Grade 2 Module 7 Lesson 22 Problem Set Answer Key

Question 1.

Each unit length on both number lines is 10 centimeters.

(Note: Number lines are not drawn to scale.)

a. Show 30 centimeters more than 65 centimeters on the number line.

Answer:

b. Show 20 centimeters more than 75 centimeters on the number line.

Answer:

c. Write an addition sentence to match each number line.

Answer:

Addition sentence for a) bit is

30 centimeters more than 65 centimeters represented as

65 cm + 30 cm = 95 cm.

Addition sentence for b) bit is

20 centimeters more than 75 centimeters is represented as

75 cm + 20 cm = 95 cm.

Question 2.

Each unit length on both number lines is 5 yards.

a. Show 25 yards less than 90 yards on the following number line.

Answer:

b. Show 35 yards less than 100 yards on the number line.

Answer:

c. Write a subtraction sentence to match each number line.

Answer:

A subtraction sentence to a) and b) bit question are

a) 90 yards – 25 yard = 65 yards

b)100 yards – 35 yards = 65 yards

Question 3.

Vincent’s meter strip got cut off at 68 centimeters. To measure the length of his screwdriver, he writes “81 cm – 68 cm.” Alicia says it’s easier to move the screwdriver over 2 centimeters. What is Alicia’s subtraction sentence? Explain why she’s correct.

Answer:

Question 4.

A large flute is 71 centimeters long, and a small flute is 29 centimeters long. What is the difference between their lengths?

Answer:

Question 5.

Ingrid measured her garden snake’s skin to be 28 inches long using a yardstick but didn’t start her measurement at zero. What might be the two endpoints of her snakeskin on her yardstick? Write a subtraction sentence to match your idea.

Answer:

### Eureka Math Grade 2 Module 7 Lesson 22 Exit Ticket Answer Key

Each unit length on both number lines is 20 centimeters.

(Note: Number lines are not drawn to scale.)

Question 1.

Show 20 centimeters more than 25 centimeters on the number line.

Answer:

Question 2.

Show 40 centimeters less than 45 centimeters on the number line.

Answer:

Question 3.

Write an addition or a subtraction sentence to match each number line.

Answer:

The addition and subtraction sentence for a) and b) are

The addition sentence for a)= 20 cm + 25 cm = 45 cm

The subtraction sentence for b) = 45 cm – 40 cm = 5 cm.

### Eureka Math Grade 2 Module 7 Lesson 22 Homework Answer Key

Question 1.

Each unit length on both number lines is 10 centimeters.

(Note: Number lines are not drawn to scale.)

a. Show 20 centimeters more than 35 centimeters on the number line.

Answer:

b. Show 30 centimeters more than 65 centimeters on the number line.

Answer:

c. Write an addition sentence to match each number line.

Answer:

The addition and subtraction sentence for a) and b) are

The addition sentence for a)= 20 cm + 35 cm = 55 cm

The addition sentence for b) = 30 cm + 65 cm = 95 cm

Question 2.

Each unit length on both number lines is 5 yards.

a. Show 35 yards less than 80 yards on the following number line.

Answer:

b. Show 25 yards less than 100 yards on the number line.

Answer:

c. Write a subtraction sentence to match each number line.

Answer:

The subtraction sentence for each number line in a) and b)

a) 80 yards – 30 yards = 50 yards.

b) 100 yards – 25 yards = 75 yards.

Question 3.

Laura’s meter strip got cut off at 37 centimeters. To measure the length of her screwdriver, she writes “51 cm – 37 cm.” Tam says it’s easier to move the screwdriver over 3 centimeters. What is Tam’s subtraction sentence? Explain why she’s correct.

Answer:

Question 4.

Alice measured her belt to be 22 inches long using a yardstick, but she didn’t start her measurement at zero. What might be the two endpoints of her belt on her yardstick? Write a subtraction sentence to match your idea.

Answer:

Question 5.

Isaiah ran 100 meters on a 200-meter track. He started running at the 19-meter mark. On what mark did he finish his run?

Answer: