The solutions to **Bridges in Mathematics Grade 3 Home Connections Answer Key Unit 2 Module 3** can help students to clear their doubts quickly.

## Bridges in Mathematics Grade 3 Home Connections Answer Key Unit 2 Module 3

**Bridges in Mathematics Grade 3 Home Connections Unit 2 Module 3 Session 1 Answer Key**

**More Windows**

Question 1.

Figure out how many windowpanes are in each window. Show your thinking with words, numbers, and pictures. Write an equation for each problem.

a.

Equation

Answer:

There are 3 rows and 7 columns

3 × 7 = 21 panes

b.

Equation

Answer:

There are 6 rows and 7 columns

6 × 7 = 42 panes

c.

Equation

Answer:

There are 10 rows and 7 columns

10 × 7 = 70 panes

d.

Equation

Answer:

There are 9 rows and 7 columns

9 × 7 = 63 panes

Question 2.

Solve each equation below.

____ × 4 = 24 8 × ____ = 24 6 × 4 = ____

10 × _____ = 24 5 × 8 = ____ ____ × 5 = ____

3 × 9 = ____ 9 × ____ = 27 ___ × 3 = 27

Answer:

6 × 4 = 24 8 × 3 = 24 6 × 4 = 24

10 × 4 = 40 5 × 8 = 40 8 × 5 = 40

3 × 9 = 27 9 × 3 = 27 9 × 3 = 27

Question 3.

Fill in the blanks in the skip-counts below.

a.

Answer:

Multiples of 4

b.

Answer:

Multiples of 6

Question 4.

Complete the problems below.

2 × 3 = ____ 4 × 3 = ____ 8 × 3 = ____ 10 × 3 = ____ 9 × 3 = ____

Answer:

2 × 3 = 6 4 × 3 = 12 8 × 3 = 24 10 × 3 = 30 9 × 3 = 27

Question 5.

Complete the Number Line Puzzle below.

Answer:

Question 6.

Solve each problem. Show your thinking with equations, sketches, or words.

a. Carl can wash 8 windows in an hour. How many windows can he wash in 3 hours?

Answer:

Given,

Carl can wash 8 windows in an hour.

8 × 3 = 24 windows

b. **CHALLENGE** Sarah can wash 7 windows in an hour. Lilja can wash 4 windows in an hour. How many windows can Sarah and Lilja wash in 4 hours if they work together?

Answer:

Given,

Sarah can wash 7 windows in an hour. Lilja can wash 4 windows in an hour.

7 + 4 = 11

11 × 4 = 44 windows

**Bridges in Mathematics Grade 3 Home Connections Unit 2 Module 3 Session 3 Answer Key**

**Mixed Practice**

**Number Puzzles**

Question 1.

Find the missing numbers in the equations below.

5 × ___ = 20 ___ × 3 = 24 9 × 3 = ____

4 + ___ = 14 18 – ___ = 9 ___ – 7 = 8

4 × ___ = 28 8 × 4 = ___ ___ × 6 = 36

16 – ___ = 9 ___ + 8 = 13 9 + ___ = 12

8 × 2 = ___ 7 × ___ = 3 ___ × 3 = 12

Answer:

5 × 4 = 20 8 × 3 = 24 9 × 3 = 27

4 + 10 = 14 18 – 9 = 9 15 – 7 = 8

4 × 7 = 28 8 × 4 = 32 6 × 6 = 36

16 – 7 = 9 5 + 8 = 13 9 + 3 = 12

8 × 2 = 16 7 × 5 = 35 4 × 3 = 12

Question 2.

Are the following true or false? Why?

a. 9 + 5 = 10 + 4 True False Explain:

Answer:

9 + 5 = 14

10 + 4 = 14

14 = 14

So, it is true

b. 9 – 5 = 10 – 4 True False Explain:

Answer:

9 – 5 = 4

10 – 4 = 6

So, it is false.

c. 9 × 5 = 10 × 4 True False Explain:

Answer:

9 × 5 = 45

10 × 4 = 40

45 ≠ 40

So, it is false.

Solve each problem. Show your thinking with equations, sketches, or words.

Question 3.

Suzie studies multiplication fact cards at home every Monday through Friday for 7 minutes on each of those days. How many minutes does she study the multiplication facts in a week?

Answer:

Given,

Suzie studies multiplication fact cards at home every Monday through Friday for 7 minutes on each of those days.

7 × 5 = 35 minutes

Question 4.

Jim paid $48 to buy a package of 6 flea treatments for his dog. How much does one flea treatment cost?

Answer:

Given,

Jim paid $48 to buy a package of 6 flea treatments for his dog.

48 ÷ 6 = 8

Question 5.

**CHALLENGE** Each flea treatment usually lasts for about 4 weeks, but one year the fleas were especially bad. Jim’s dog needed to be treated for fleas every 3 weeks until the weather cooled off.

a. How many weeks of flea treatments would Jim’s dog get from one package if each treatment only lasted 3 weeks?

Answer: 18 weeks

b. In a normal year, when a flea treatment lasts 4 weeks, how many more weeks of treatments would Jim’s dog get from one package?

Answer: 6 more weeks

Question 6.

**CHALLENGE** Bobby’s favorite cupcakes come in packages of 4. He asked his grandma to buy them for a class party. She had to go to two grocery stores to get enough cupcakes for all the kids in the class. She bought 5 packages at the first store and 2 packages at the second store. How many cupcakes did Bobby’s grandmother buy in all?

Answer:

Given,

Bobby’s favorite cupcakes come in packages of 4. He asked his grandma to buy them for a class party.

She had to go to two grocery stores to get enough cupcakes for all the kids in the class.

She bought 5 packages at the first store and 2 packages at the second store.

5 + 2 = 7 packages

7 × 4 = 28 cupcakes

**Bridges in Mathematics Grade 3 Home Connections Unit 2 Module 3 Session 5 Answer Key**

**Grocery Shopping**

Question 1.

Fill in the tables below.

Answer:

Question 2.

Find the missing numbers in the equations below.

3 × ___ = 12 ___ × 3 = 18 7 × 3 = ____

5 × ___ = 25 7 × 4 = ____ ___ × 6 = 30

6 × 4 = ___ 6 × ___ = 36 ___ × 2 = 12

Answer:

3 × 4 = 12 6 × 3 = 18 7 × 3 = 21

5 × 5 = 25 7 × 4 = 28 5 × 6 = 30

6 × 4 = 24 6 × 6 = 36 6 × 2 = 12

Question 3.

Solve each problem. Show your thinking with equations, sketches, or words.

a. A 10-pack of instant oatmeal costs $2.00. How much does each pack cost?

Answer:

A 10-pack of instant oatmeal costs $2.00.

2/10 = $0.2

b. **CHALLENGE** Oranges are 2 pounds for $1.00. Apples are $2.00 per pound. Chris bought 5 pounds of oranges and 3 pounds of apples. How much did Chris pay for all the fruit?

Answer:

Given,

Oranges are 2 pounds for $1.00. Apples are $2.00 per pound. Chris bought 5 pounds of oranges and 3 pounds of apples.

Oranges are 2 pounds for $1.00.

1 pound of orange = $0.50

5 × 0.50 = $2.50

3 × 2 = $6

$6 + $2.50 = $8.50

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