Refer to our Texas Go Math Grade 4 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 4 Lesson 15.2 Answer Key Customary Units of Length.

## Texas Go Math Grade 4 Lesson 15.2 Answer Key Customary Units of Length

**Essential Question**

How can you convert customary units of length?

Answer:

The customary system of measurement is defined as a set of Weights and measures used for measuring length, weight, capacity, and temperature. Based on the English system of measurement, it is also known as the U.S. Customary System

**Unlock the problem**

You can use a ruler to measure length. A ruler that is 1 foot long shows 12 inches in 1 foot. A ruler that is 3 feet long is called a yardstick. There are 3 feet in 1 yard.

How does the size of a foot compare to the size of an inch?

**Activity**

Materials

- 1-inch grid paper
- scissors
- tape

STEP 1 Cut out the paper-inch tiles. Label each tile 1 inch.

STEP 2 Place 12 tiles end-to-end to build 1 foot. Tape the tiles together.

STEP 3 Compare the size of 1 foot to the size of 1 inch.

So, 1 foot is ____________ times as long as 1 inch.

Answer:

So, 1 foot is 12 times as long as 1 inch.

Explanation:

1 foot = 12 inches

3 feet = 1 yard

**Math Talk**

Mathematical Processes

How many inches would you need to make a yard?

Answer:

32 inches make a yard

Explanation:

3 feet = 1 yard

1 foot = 12 inches

so,

3 x 12 = 36inches.

**Example 1** Convert larger units to smaller units.

Emma has 4 feet of thread to make some bracelets. How many inches of thread does Emma have?

Since 1 foot is 12 times as long as 1 inch, you can write feet as inches by multiplying the number of feet by 12.

Make a table that relates feet and inches.

So, Emma has ___________ inches of thread.

Answer:

Explanation:

Each feet is multiplied with 12

for converting into inches

So, Emma has 48 inches of thread.

**Example 2** Convert smaller units to larger units.

Jason ran 300 feet during recess. How many yards did Jason run?

Make a table that relates feet and yards.

So, Jason ran ____________ yards during recess.

Answer:

Explanation:

3 feet = 1 yard

300 ÷3 = 100

So, Jason ran 100 yards during recess.

What if Emma had 5 feet of thread? Would she have enough thread to make the bracelets? Explain.

Answer:

yes, she has

Explanation:

Emma had 5 feet of thread

5 feet = 60 inches.

she has to made bracelet with 4 feet only

so, there will be 1 feet remaining.

**Math Talk**

Mathematical Processes

Explain how making a table helped you solve the problem.

Answer:

The conversions are directly noted in the table

There will be no need of calculating each time

Explanation:

With the help of table we have to just analyze and answer.

**Share and Show**

Question 1.

Compare the size of a yard to the size of a foot.

Use a model to help.

1 yard is _________ times as long as _________ foot.

Answer:

Explanation:

1 yard is 3 times as long as 1 foot.

**Complete.**

Question 2.

2 feet = _________ inches

Answer:

2 feet = 24 inches

Explanation:

1 foot = 12 inches

2 x 12 = 24 inches

Question 3.

3 yards = _________ feet

Answer:

3 yards = 9 feet

Explanation:

1 yard = 3 feet

3 x 3 = 9

Question 4.

12 feet = _________ yards

Answer:

12 feet = 4 yards

Explanation:

3 feet = 1 yard

12 ÷ 3 = 4

Question 5.

7 yards = _________ feet

Answer:

7 yards = 21 feet

Explanation:

1 yard = 3 feet

7 x 3 = 21 feet

Question 6.

144 inches = _________ feet

Answer:

144 inches = 12 feet

Explanation:

1 feet = 12 inches

144 ÷ 12 = 12 feet

Question 7.

72 feet = _________ yards

Answer:

72 feet = 24 yards

Explanation:

3 feet = 1 yard

72 ÷ 3 = 24 yards

**Math Talk**

Mathematical Processes

If you measured the length of your classroom in yards and then in feet, which unit would have a greater number of units? Explain.

Answer:

Yards

Explanation:

Measuring by yards are better than in feet

because 1 yard = 3 feet.

**Problem Solving**

Question 8.

**H.O.T. Multi-Step** Joanna has 3 yards of fabric. She needs 100 inches of fabric to make curtains. Does she have enough fabric to make curtains? Explain. Make a table to help.

Answer:

Explanation:

1 yard = 3 feet

3 x 3 = 9 feet

1 feet = 12 inches

12 x 9 = 108 inches

With the help of table we can easily know that

Joanna has enough fabric.

Question 9.

**H.O.T.** Justify Hannah’s room is 14 feet wide. She says that her room is 160 inches wide. Is Hannah correct? Explain your answer.

Answer:

168 > 160 so, Hannah correct

Explanation:

1 feet = 12 inches

14 = 168 inches

14 x 12 = 168 inches.

**Daily Assessment Task**

**Fill in the bubble completely to show your answer.**

Question 10.

A spool of thread contains 6 yards of thread. How many feet of thread are on the spool?

(A) 6 feet

(B) 9 feet

(C) 18 feet

(D) 2 feet

Answer: C

6 yards = 18 feet

Explanation:

Question 11.

Which statement about 8 yards and 25 feet is true?

(A) 25 feet = 8 yards

(B) 25 feet < 8 yards

(C) 8 yards > 25 feet

(D) 8 yards < 25 feet

Answer: B

Explanation:

1 yard = 3 feet

8 x 3 =24 feet

Question 12.

**Multi-Step** Carla has 3 feet of ribbon. She needs 38 inches of ribbon to wrap a present. How many more inches of ribbon does Carla need?

(A) 2 inches

(B) 35 inches

(C) 29 inches

(D) 3 inches

Answer: A

Explanation:

3 feet = 36 inches

38 – 36 = 2 inches

2 more inches of ribbon that Carla need

**TEXAS Test Prep**

Question 13.

Jim is putting carpet in his basement. The length of his basement is 12 yards. How many feet is the length of his basement?

(A) 4 feet

(B) 15 feet

(C) 36 feet

(D) 432 feet

Answer: C

Explanation:

12 yards

1 yard = 3 feet

12 x 3 = 36 feet

36 feet is the length of his basement

### Texas Go Math Grade 4 Lesson 15.2 Homework and Practice Answer Key

**Complete.**

Question 1.

3 feet = ___________ inches

Answer:

3 feet = 36 inches

Explanation:

1 feet = 12 inches

12 x 3 = 36

Question 2.

5 yards = ___________ inches

Answer:

5 yards = 180 inches

Explanation:

1 yard = 3 feet

1 feet = 12 inches

5 x 3 = 15 feet

15 x 12 = 180 inches

Question 3.

4 yards = ___________ feet

Answer:

4 yards = 12 feet

Explanation:

1 yard = 3 feet

4 x 3 = 12 feet

Question 4.

72 inches = ___________ yards

Answer:

72 inches = 2 yards

Explanation:

1 yard = 3 feet

1 feet = 12 inches

72 ÷ 12 = 6

6 ÷ 3 = 2

Question 5.

9 feet = ___________ yards

Answer:

9 feet = 3 yards

Explanation:

1 yard = 3 feet

1 feet = 12 inches

9 ÷ 3 = 3

Question 6.

60 inches = ___________ feet

Answer:

60 inches = 5 feet

Explanation:

1 yard = 3 feet

1 feet = 12 inches

60 ÷ 12 = 5

**Problem Solving**

Question 7.

Conor has a roll of fence that is 25 feet long. He needs 8 yards of fence to go around a flower bed. Does he have enough fence to go around the flower bed? Explain. Make a table to help you.

Answer:

Explanation:

Conor has a roll of fence that is 25 feet long.

He needs 8 yards of fence to go around a flower bed.

He does not have enough fence to go around the flower bed

8 yard = 24 feet.

Question 8.

If you measured the width of a window in inches and then in feet, which measurement would have the greater number of units? Explain your answer.

Answer:

Feet

Explanation:

Measuring by feet are better than in inches

because 1 feet = 12 inches.

Question 9.

Ginny’s house is 20 yards long. She says that the house is 720 feet long. Is Ginny correct? Explain your answer.

Answer:

1 yard = 3 feet

Explanation:

20 yards = 60 feet

so, Ginny is not correct

**Lesson Check**

**Fill in the bubble completely to show your answer.**

Question 10.

Which statement is true?

(A) 15 feet = 3 yards

(B) 15 yards = 3 feet

(C) 15 feet = 5 yards

(D) 15 yards = 5 feet

Answer: C

Explanation:

15 feet = 5 yards

is the correct statement.

Question 11.

The statement Evan wrote comparing 60 inches and 6 feet is true. Which statement did he write?

(A) 60 inches = 6 feet

(B) 60 inches > 6 feet

(C) 6 feet < 60 inches

(D) 6 feet > 60 inches

Answer: C

Explanation:

6 feet = 72 inches

6 feet < 60 inches

This is the correct statement.

Question 12.

Halley has a 5-foot long extension cord. She wants to know its length in inches. How many inches long is the cord?

(A) 60 inches

(B) 180 inches

(C) 15 inches

(D) 48 inches

Answer: B

Explanation:

1 feet = 36 inches

5 x 36 = 180 inches

180 inches long is the cord

Question 13.

Alex’s driveway is 27 yards long and 10 yards wide. How many feet long is the driveway?

(A) 9 feet

(B) 81 feet

(C) 972 feet

(D) 324 feet

Answer: B

Explanation:

27 yard = 81 feet

1 yard = 3 feet

27 x 3 = 81 feet

Question 14.

**Multi-Step** A roll of tape is 50 yards long. How many pieces of tape 2 inches long can be cut from the tape?

(A) 150

(B) 9,000

(C) 900

(D) 300

Answer: C

Explanation:

1 yard = 36 inches

50 x 36 = 1800 inches

1800 ÷ 2 = 900 inches

Question 15.

**Multi-Step** Vicky has a 50 inch roll of ribbon. She uses 3 feet of the ribbon to wrap a gift. How many inches of ribbon does she have left?

(A) 4 inches

(B) 41 inches

(C) 14 inches

(D) 24 inches

Answer: C

Explanation:

3 feet = 36 inches

50 – 36 = 14 inches

14 inches of ribbon that she have left