Refer to our Texas Go Math Grade 5 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 5 Lesson 3.1 Answer Key Multiplication Patterns with Decimals.

## Texas Go Math Grade 5 Lesson 3.2 Answer Key Multiply Decimals and Whole Numbers

**Investigate**

Materials decimal models color pencils

Giant tortoises move very slowly. They can travel a distance of about 0.17 mile in 1 hour,

If a giant tortoise travels at the same speed, how far could it move in 4 hours?

A. Complete the statement to describe the problem.

I need to find how many total miles are in _0.17__ groups of _4__

â€¢ Write an expression to represent the problem. _0.17 X 4___

B. Use the decimal model to find the answer.

â€¢ What does each small square in the decimal model represent?

C. Shade a group of ___ squares to represent the distance a giant tortoise can move in 1 hour.

D. Use a different color to shade each additional

group of ___ squares until you have __ group of __ squares.

E. Record the total number of squares shaded. ___ squares

So, the giant tortoise can move ___ mile in 4 hours.

Answer:

A. Total number of miles are in 0.17 groups of 4,

Wrote an expression to represent the problem 0.17 X 4,

B. Used the decimal model to find the answer,

Used small square in the decimal model represents,

C. Shaded a group of 4 squares to represent the distance a

giant tortoise can move in 1 hour.

D. Used a different color to shade each additional

group of __0.17_ squares until you have _4_ group of _0.17_ squares.

E. Record the total number of squares shaded. __0.68_ squares

So, the giant tortoise can move _0.68__ mile in 4 hours.

Explanation:

A. Total number of miles are in 0.17 groups of 4,

Wrote an expression to represent the problem 0.17 X 4,

B. Used the decimal model to find the answer,

Used small square in the decimal model represents,

C. Shaded a group of 4 squares to represent the distance a

giant tortoise can move in 1 hour.

D. Used a different color to shade each additional

group ofÂ 0.17 squares until you have 4 group of 0.17 squares.

E. Record the total number of squares shaded 0.68 squares

So, the giant tortoise can move 0.68 mile in 4 hours.

**Math talk**

**Mathematical Process
**

Explain how the model helps you determine if your answer is reasonable.

Answer:

Model helped easy way to represent decimal values with the whole,

Explanation:

The model helped to determine the answer is reasonable as

4 blocks of 17 we get

17

X 4

68

hundredths places so 0.68.

**Make connection**

You can use base-ten blocks to solve decimal multiplication problems.

A quick picture is a way to record your work.

Find the product. 3 Ã— 0.46

Step 1

Make 3 groups of 4 tenths and 6 hundredths.

Remembering that a square or a flat is equal to 1.

Drawn a quick picture to record your work.

Step 2

Combined the hundredths and renamed.

There are _6__ hundredths. I will rename _6_ hundredths as _0.60__.

In our quick picture, cross out the hundredths you renamed.

Step 3

Combined the tenths and renamed.

There are _4_ tenths. I will rename _4_ tenths as _0.40__.

In quick picture, cross out the tenths you renamed.

Step 4

Record the value shown by your completed quick picture.

So, 3 Ã— 0.46 = _1.38_

**Share and Show**

**Math Talk**

**Mathematical Processes**

Explain how renaming decimals is like renaming Whole numbers.

Answer:

Place values change,

Explanation:

When whole numbers are renamed the decimal’s place values change

from units to tenths, tens to hundredths.

**Share and Show**

Use the decimal model to find the product.

Question 1.

5 Ã— 0.06 = __0.30_

Answer:

Explanation:

Step 1

MakingÂ 5 groups of 6 hundredths.

Remember that a square or a flat is equal to 1.

Drawn a quick picture to record your work.

Step 2

Combined the hundredths and rename.

There are 6 hundredths. I will rename _6__ hundredths as _0.60__.

In our quick picture, cross out the hundredths you renamed.

Step 3

Recorded the value shown by your completed quick picture

So, 5 Ã— 0.06 = _0.30_

**Go Math Grade 5 Lesson 3.2 Answer Key Question 2.**

5 Ã— 0.38 = _1.90__

Answer:

Explanation:

Step 1

MakingÂ 5 groups of 3 tenths and 8Â hundredths,

Remembering that a square or a flat is equal to 1.

Drawn a quick picture to record your work.

Step 2

Combined the tenths,hundredths and rename.

There are 3 tenths and 8 hundredths,

I will rename _3__ tenths and __8 __hundredths as _0.38__.

In your quick picture, cross out the hundredths you renamed.

Step 3

Recorded the value shown by your completed quick picture

So, 5 Ã— 0.38 = _1.90_

Question 3.

4 Ã— 0.24 = ___

Answer:

4 X 0.24 = 0.96,

Explanation:

Step 1

MakingÂ 4 groups of 2 tenths and 4 hundredths,

Remembering that a square or a flat is equal to 1.

Drawn a quick picture to record your work.

Step 2

Combined the tenths and hundredths and rename.

There are 2 tenths, 4 hundredths. I will rename 2 tenths,

4 hundredths as _0.24__.

In your quick picture, cross out the hundredths you renamed.

Step 3

Recorded the value shown by your completed quick picture

So, 4 Ã— 0.24 = _0.96_

**Lesson 3.2 Answer Key 5th Grade Multiply Decimals Question 4.**

3 Ã— 0.62 = __1.86__

Answer:

Explanation:

Step 1

MakingÂ 3 groups of 6 tenths and 2 hundredths,

Remembering that a square or a flat is equal to 1.

Drawn a quick picture to record your work.

Step 2

Combined the tenths and hundredths and rename.

There are 6 tenths, 2 hundredths. I will rename 6 tenths,

2 hundredths as _0.62__.

In your quick picture, cross out the hundredths you renamed.

Step 3

Recorded the value shown by your completed quick picture

So, 3 Ã— 0.62 = _1.86_

Question 5.

4 Ã— 0.32 = _1.28__

Answer:

Explanation:

Step 1

Making 4 groups of 3 tenths and 2 hundredths,

Remembering that a square or a flat is equal to 1.

Drawn a quick picture to record your work.

Step 2

Combined the tenths and hundredths and rename.

There are 3 tenths, 2 hundredths. I will rename 3 tenths,

2 hundredths as _1.28__.

In your quick picture, cross out the hundredths you renamed.

Step 3

Recorded the value shown by your completed quick picture

So, 4 Ã— 0.32 = _1.28_

**Problem Solving**

Use the table for 6-8. Use quick pictures or base-ten blocks to help.

Question 6.

Each day a bobcat drinks about 3 times as much water as a Canada goose drinks.

How much water does a bobcat drink in one day?

Answer:

3 X 0.24 = 0.72 liters,

Explanation:

Given each day a bobcat drinks about 3 times as much water as a Canada Goose drinks.

Average amount each day Canada Goose drinks is 0.24 liters,

Water does a bobcat drink in one day is

0.24

XÂ 3

0.72

**Go Math Grade 5 Chapter 3 Lesson 3.2 Answer Key Question 7.**

Multi-Step River otters drink about 5 times as much water as a bald eagle drinks in a day.

How much water does a river otter drink in three days?

Answer:

Water does a River otter drink in three days is 2.40 liters,

Explanation:

Given Multi-Step River otters drink about 5 times as much

water as a bald eagle drinks in a day.

Average amount each day Bald Eagle drinks is 0.16 liters

5 X 0.16 = 0.80,

Water does a River otter drink in three days is

3 X 0.80

0.80

XÂ Â 3

2.40

Question 8

Write Math Explain how you could use a quick picture to

find the amount of water that a cat drinks in 5 days.

Answer:

The amount of water that a cat drinks in 5 days is 0.75 liters,

Explanation:

Given Math explained the amount of water that a cat drinks in

5 days is 5 X 0.15 = 0.75Â liters.

Question 9.

Compare the product of 0.46 and 3 with each of the factors.

Which number has the greatest value? Explain how this is different than

multiplying two whole numbers.

Answer:

The greatest values will be multiplying two whole numbers rather than

multiplying decimal values,

Explanation:

The product of 0.46 and 3 is

1

0.46

XÂ Â 3

1.38

Factors of 0.4 is (0.1,0.4) or (0.2,0.2),

Factors of 0.06 is (0.01,0.06) or (0.02, 0.03),

Factors of 3 are (1,3), there are no common factors as we have whole numbers compared with tenths and hundredths, therefore, the greatest values will be multiplying two whole numbers rather than multiplying decimal values.

**Daily Assessment Task**

Fill in the bubble completely to show your answer.

**Go Math 5th Grade Lesson 3.2 Answer Key Question 10.**

Representations What multiplication expression does the model show?

(A) 5 Ã— 0.4

(B) 5 Ã— 0.6

(C) 16 Ã— 0.05

(D) 5 Ã— 0.16

Answer:

(A) 5 Ã— 0.4,

Explanation:

Given model represents 5 multiplied by 4 tenths,

So matches with (A) 5 X 0.4.

Question 11.

Display Which equation matches the model?

(A) 4 Ã— 0.31 = 1.24

(B) 4 Ã— 0.31 = 1.51

(C) 4 Ã— 0.39 = 1.24

(D) 4 Ã— 0.39 = 1.56

Answer:

(A) 4 Ã— 0.31 = 1.24

Explanation:

Given model represents 4 multiplied by 3 tenths and 1 hundredths

giving the results as 4 X 0.31 =

0.31

X 4

1.24, So matches with (A) 4 X 0.31 = 1.24.

Question 12.

**Multi-Step** Use Diagrams Use a quick picture to multiply 3 Ã— 0.16.

Then multiply the result by 3 again. What is the final product?

(A) 0.32

(B) 0.48

(C) 1.44

(D) 1.24

Answer:

(C) 1.44,

Explanation:

Using Diagrams a quick picture to multiply

0.16

XÂ 3

0.48

Now multiplying the result by 3 again,

0.48

XÂ 3

0.24

1.20

1.44,Â matches with (C).

**Texas Test Prep**

**Lesson 3.2 Multiply Decimals by Whole Numbers Question 13.**

Jared has a parakeet that weighs 1.44 ounces. Susie has a Senegal parrot that

weighs 3 times as much as Jaredâ€™s parakeet. How many ounces does Susieâ€™s parrot weigh?

(A) 0.32 ounce

(B) 43.2 ounces

(C) 4.32 ounces

(D) 0.43 ounce

Answer:

(C) 4.32 ounces,

Explanation:

Given Jared has a parakeet that weighs 1.44 ounces.

Susie has a Senegal parrot that weighs 3 times as much as Jaredâ€™s parakeet.

Number of ounces does Susieâ€™s parrot weigh is

11

1.44

XÂ 3

4.32 matches with (C) 4.32 ounces.

### Texas Go Math Grade 5 Lesson 3.2 Homework and Practice Answer Key

**Use the decimal model to find the product.**

Question 1.

4 Ã— 0.07 = _0.28__

Answer:

4 X 0.07 = 0.28,

Explanation:

Given model represents 4 multiplied by 7 hundredths

giving the results as 4 X 0.07 =

0.07

XÂ 4

0.28, So 4 X 0.07 = 0.28.

**Go Math Practice and Homework Lesson 3.2 Answer Key Question 2.**

3 Ã— 0.21 = __0.63_

Answer:

Explanation:

Given model represents 3 multiplied by 2 tenths and 1 hundredths

giving the results as 3 X 0.21 =

0.21

XÂ 3

0.63, So 3 X 0.63 = 0.63.

Question 3.

4 Ã— 0.13 = _0.52__

Answer:

Explanation:

Given model represents 4 multiplied by 1 tenths and 3 hundredths

giving the results as 4 X 0.13 =

0.13

XÂ 4

0.52, So 4 X 0.13 = 0.52.

Find the product. Draw a quick picture.

Question 4.

3 Ã— 0.38 = _1.14___

Answer:

Explanation:

Given model represents 3 multiplied by 3 tenths and 8 hundredths

giving the results as 3 X 0.38 =

2

0.38

XÂ 3

1.14, So 3 X 0.38 = 1.14.

**Go Math 5th Grade Practice and Homework Lesson 3.2 Question 5.**

2 Ã— 0.41 = __0.82__

Answer:

2 X 0.41 =

Explanation:

Given model represents 2 multiplied by 4 tenths and 1 hundredths

giving the results as 2 X 0.41 =

0.41

XÂ 2

0.82, So 2 X 0.41 = 0.82.

**Problem Solving**

Question 6.

Lars walks his dog 4 times farther than Michelle walks her dog.

Michelle walks her dog 0.23 mile. How far does Lars walk his dog?

Answer:

0.92 Lars walk his dog,

Explanation:

Lars walks his dog 4 times farther than Michelle walks her dog.

Michelle walks her dog 0.23 mile. Far does Lars walk his dog is

0.23

XÂ 4

0.92

Question 7.

One day, Nat’s dog drank 3 times as much water as his cat.

If his cat drank 0.83 liter of water, how many liters did his dog drink?

Answer:

24.9 liter Nat’s dog drank water,

Explanation:

One day, Nat’s dog drank 3 times as much water as his cat.

If his cat drank 0.83 liter of water, Liters does his dog drank is

0.83

XÂ 3

24.9

therefore, 24.9 liter Nat’s dog drank water.

**Lesson Check**

**Texas Test Prep**

Fill in the bubble completely to show your answer.

Question 8.

Which equation matches the model?

(A) 5 Ã— 0.18 = 0.9

(B) 5 Ã— 0.18 = 90

(C) 5 Ã— 0.18 = 9.0

(D) 5 Ã— 0.18 = 0.09

Answer:

(A) 5 Ã— 0.18 = 0.9,

Explanation:

Given model represents 5 multiplied by 1 tenth and 8 hundredths

giving the results as 5 X 0.18 =

4

0.18

XÂ 5

0.90, So 5 X 0.18 = 0.90.

**Go Math Lesson 3.2 5th Grade Multiply Decimals Question 9.**

Sidneyâ€™s bag of popcorn weighs 1.89 ounces. Samâ€™s bag of popcorn weighs 4 times as much as Sidneyâ€™s. What is the weight of Samâ€™s bag of popcorn?

(A) 0.756 ounce

(B) 7.56 ounces

(C) 75.6 ounces

(D) 756 ounces

Answer:

(B) 7.56 ounces,

Explanation:

Given Sidneyâ€™s bag of popcorn weighs 1.89 ounces. Samâ€™s bag of popcorn weighs 4 times as much as Sidneyâ€™s. So the weight of Samâ€™s bag of popcorn is

33

1.89

XÂ 4

7.56Â ounces which matches with (B).

Question 10.

A beaker is filled with 0.23 liter of water. Leon fills another beaker with

3 times as much water. How much water is in Leonâ€™s beaker?

(A) 0.96 liter

(B) 0.84 liter

(C) 0.69 liter

(D) 0.47 liter

Answer:

(C) 0.69 liter,

Explanation:

Given a beaker is filled with 0.23 liter of water. Leon fills another beaker with

3 times as much water. So water is in Leonâ€™s beaker is

0.23

XÂ 3

0.69 liter which matches with (C).

Question 11.

In a swimming race, Yvonne swam 0.18 mile. David swam

4 times as far as Yvonne. How far did David swim?

(A) 2.2 miles

(B) 0.22 mile

(C) 7.2 miles

(D) 0.72 mile

Answer:

(D) 0.72 mile,

Explanation:

Given in a swimming race, Yvonne swam 0.18 mile. David swam

4 times as far as Yvonne. So far did David swim is

3

0.18

XÂ 4

Â 0.72 mile matches with (D).

**Lesson 3.2 Answer Key 5th Grade Multiply Decimals Question 12.**

Multi-Step Carrie has 0.73 liters of juice in her pitcher.

Sanji’s pitcher has 2 times as much juice as Carrieâ€™s pitcher.

Lee’s pitcher has 4 times as much juice as Carrie’s pitcher.

Sanji and Lee pour all their juice into a large bowl. How much juice is in the bowl?

(A) 1.46 liters

(B) 4.38 liters

(C) 2.92 liters

(D) 5.11 liters

Answer:

(B) 4.38 liters,

Explanation:

Given Multi-Step Carrie has 0.73 liters of juice in her pitcher.

Sanji’s pitcher has 2 times as much juice as Carrieâ€™s pitcher.

So Sanji’s pitcher has 2 X 0.73 = 1.46 liters,

Lee’s pitcher has 4 times as much juice as Carrie’s pitcher.

So Lee’s pitcher has 4 X 0.73 = 2.92 liters,

As Sanji and Lee pour all their juice into a large bowl.

Juice is in the bowl is 1.46 + 2.92 = 4.38 liters matches with (B).

Question 13.

**Multi-Step** Justin and Hayden are playing a number game.

Justin’s number is the product of 4 Ã— 0.06. Hayden’s number 0.04

less than the product of Justin’s number and 4. What is Hayden’s number?

(A) 0.92

(B) 0.96

(C) 0.60

(D) 1.0

Answer:

(A) 0.92,

Explanation:

Given Justin and Hayden are playing a number game.

Justin’s number is the product of 4 Ã— 0.06. Hayden’s number 0.04

less than the product of Justin’s number and 4,

Justin’s number is 4 X 0.06 = 0.24,

Hayden’s number is (4 X 0.24) – 0.04 = 0.96 – 0.04 = 0.92 matches with (A).