## 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.  b. Show 20 centimeters more than 75 centimeters on the number line.  c. Write an addition sentence to match each number line.
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.  b. Show 35 yards less than 100 yards on the number line.  c. Write a subtraction sentence to match each number line.
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.  Question 4.
A large flute is 71 centimeters long, and a small flute is 29 centimeters long. What is the difference between their lengths? 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. ### 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.  Question 2.
Show 40 centimeters less than 45 centimeters on the number line.  Question 3.
Write an addition or a subtraction sentence to match each number line.
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.  b. Show 30 centimeters more than 65 centimeters on the number line.  c. Write an addition sentence to match each number line.
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.  b. Show 25 yards less than 100 yards on the number line.  c. Write a subtraction sentence to match each number line.
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.    