All the solutions provided in **McGraw Hill My Math Grade 2 Answer Key PDF Chapter 11 Lesson 11 Measure on a Number Line **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 2 Answer Key Chapter 11 Lesson 11 Measure on a Number Line

**Explore and Explain**

__________ – _____________ = _____________

**Teacher Directions:** Place a crayon and a pair of scissors on the number line. Line up the ends at 0. How much longer are the scissors than the crayon? Repeat with other pairs of objects. Draw a pair of objects on the number line and write the subtraction sentence that shows how much longer one object is than another.

Answer:

The crayon is 10 centimeters long

The scissors is 9 centimeters long

10 – 9 = 1

The scissors is 1 centimeter shorter than the crayon.

**See and Show**

The crayon is centimeters long.

The paper clip is centimeters long.

**Use the number line to answer the questions.**

Question 1.

How long is the pencil?

___________ inches

Answer:

5 inches

Explanation:

The pencil is 5 inches long

66 – 61 = 5

Question 2.

How much longer is the marker than the rubber band?

_____________ inches

Answer:

3 inches.

Explanation:

Length of rubber band is 3 inches

Length of the marker is 6 inches

6 – 3 = 3

3 inches longer is the marker than the rubber band

**Talk Math** How does the number line help you compare measurements?

Answer:

It can be used to measure the length of the objects by subtracting the final coordinate of the object’s position

**On My Own**

**Use the number line to answer the questions.**

Question 3.

How long is the glue stick?

______________ centimeters

Answer:

7 centimeters

Explanation:

The glue stick is 7 centimeters

77 – 70 = 7

Question 4.

How long is the push pin?

______________ centimeters

Answer:

2 centimeters

Explanation:

The push pin is 2 centimeters long

83 – 81 = 2

Question 5.

How long is the eraser?

_____________ centimeters

Answer:

6 centimeters

Explanation:

The eraser is 6 centimeters long

78 -72 = 6

Question 6.

How much longer is the pencil than the glue stick?

_______________ centimeters

Answer:

The pencil is 2 centimeters longer than glue stick.

Explanation:

The glue stick is 7 centimeters

The pencil is 9 centimeters long

9 – 7 = 2

Question 7.

How long are the eraser and push pin in all?

_____________ centimeters

Answer:

8 centimeters

Explanation:

The push pin is 2 centimeters long

The eraser is 6 centimeters long

6 + 2 = 8

eraser and push pin are 8 centimeters altogether

Question 8.

How much shorter is the push pin than the pencil?

_______________ centimeters

Answer:

Explanation:

The pencil is 9 centimeters long

The push pin is 2 centimeters long

9 – 2 = 7

7 centimeters shorter is the push pin than the pencil

**Problem Solving**

Question 9.

Makenna is 38 inches tall. Her brother is 26 inches tall. How much taller is Makenna?

____________ inches

Answer:

12 inches

Explanation:

Makenna is 38 inches tall.

Her brother is 26 inches tall.

38 – 26 = 12

12 inches taller is Makenna.

Question 10.

Carly’s dog Sebastian is 22 inches long. Her cat, Annabelle, is 17 inches long. How much longer is Sebastian?

Answer:

5 inches

Explanation:

Carly’s dog Sebastian is 22 inches long.

Her cat, Annabelle, is 17 inches long.

22 – 17 = 5

5 inches longer is Sebastian

Question 11.

Levi found a trail in the woods that is 54 meters long. Then he found a second trail that is 83 meters long. How much longer is the second trail?

____________ meters

Answer:

29 meters

Explanation:

Levi found a trail in the woods that is 54 meters long.

Then he found a second trail that is 83 meters long.

83 – 54 = 29

29 meters longer is the second trail.

**Write Math** How can a number line help you measure objects? Explain.

Answer:

Number line is a line marked with numbers with unit distance apart.

It can be used to measure the length of the objects by subtracting the final length of the object’s position

### McGraw Hill My Math Grade 2 Chapter 11 Lesson 11 My Homework Answer Key

**Practice**

**Use the number line to answer the questions.**

Question 1.

How long is the truck?

_____________ centimeters

Answer:

7 centimeters

Explanation:

The truck is 7 centimeters long

74 – 67 = 7

Question 2.

How long is the car?

_____________ centimeters

Answer:

6 centimeters

Explanation:

The car is 6 centimeters long

66 – 60 = 6

Question 3.

How long is the barrette?

______________ inches

Answer:

2 inches.

Explanation:

the barrette is 2 inches long

83 – 81 = 2

Question 4.

How much longer is the nail polish than the earring?

______________ inches

Answer:

1 inch

Explanation:

The nail polish is 3 inches long

the earring is 1 inches long

3 – 1 = 2

2 inch longer is the nail polish than the earring

Question 5.

Sean builds a block tower that ¡s 35 inches high. Victoria builds a block tower that is 27 inches high. How much higher is Sean’s tower?

_____________ inches

Answer:

8 inches.

Explanation:

Sean builds a block tower that ¡s 35 inches high.

Victoria builds a block tower that is 27 inches high.

35 – 27 = 8

8 inches higher is Sean’s tower

**Test Practice**

Question 6.

36 inches + 26 inches = _____________

(A) 62 inches

(B) 62 centimeters

(C) 62 feet

(D) 62 meters

Answer:

A

Explanation:

36 inches + 26 inches =62 inches

The sum of 36 and 26 is 62

**Math at Home** Help your child create a large number line measured in inches. Have him or her measure objects from your home using the number line.

Answer: