Practicing the **Bridges in Mathematics Grade 4 Home Connections Answer Key** **Unit 2 Module 3 **will help students analyze their level of preparation.

## Bridges in Mathematics Grade 4 Home Connections Answer Key Unit 2 Module 3

**Bridges in Mathematics Grade 4 Home Connections Unit 2 Module 3 Session 2 Answer Key**

**Multiplying by Multiples of Ten**

Question 1.

Solve each problem below:

a. 2 Ã— 16 = ____

Answer:

When we multiply 2 with 16 we get 32

b. 20 Ã— 16 = ____

Answer:

When we multiply 20 with 16 we get 320

c. 4 Ã— 21 = ____

Answer:

When we multiply 4 with 21 we get 84

d. 40 Ã— 21 = ____

Answer:

When we multiply 40 with 21 we get 840

e. 8 Ã— 15 = ____

Answer :

When we multiply 8 with 15 we get 120

f. 80 Ã— 15 = ____

Answer:

When we multiply 80 with 15 we get 1200

Question 2.

Fill in the blanks

a. 6 Ã— 20 = 6 Ã— 2 Ã— ____

Answer:

To get the missing number we have to multiply 6 Ã— 20 = 120

So, to get 120 we need 12 Ã— 10

the missing number will be 10

6 Ã— 20 = 6 Ã— 2 Ã— 10

b. 30 Ã— 8 = 3 Ã— ___ Ã— 8

Answer:

To get the missing number we have to multiply 30 Ã— 8 = 240

So, to get 240 we need 3 Ã— 10 Ã— 8

the missing number will be 10

30 Ã— 8 = 3 Ã— 10 Ã— 8

c. 5 Ã— 100 = ____ Ã— 10 Ã— 10

Answer:

To get the missing number we have to multiply 5 Ã— 100 = 500

So, to get 500 we need 5 Ã— 10 Ã— 10

the missing number will be 5

5 Ã— 100 = 5 Ã— 10 Ã— 10

d. 40 Ã— 7 = ___ Ã— 10 Ã— 7

Answer:

To get the missing number we have to multiply 40 Ã— 7 = 280

So, to get 280 we need 4 Ã— 10 Ã— 7

the missing number will be 4

40 Ã— 7 = 4 Ã— 10 Ã— 7

Question 4.

Fill in the Multiple Wheel below.

Answer:

Question 5.

Kyra is putting up streamers for a party. She uses 75 feet of streamers to decorate one wall. Two more walls also each use 75 feet of streamers. Kyra cuts 75 feet of streamers for the last wall, but this wall has a large poster on it, and she only needs to use 68 feet of streamers. How many feet of streamers did Kyra use in all?

Answer:

Given,

Kyra is putting up streamers for a party. She uses 75 feet of streamers to decorate one wall. Two more walls also each use 75 feet of streamers.

Kyra cuts 75 feet of streamers for the last wall, but this wall has a large poster on it, and she only needs to use 68 feet of streamers.

75 + 75 + 75 + 68 = 293

Thus kyra used 293 feet of streamers.

Question 6.

CHALLENGE Luis and Kyra are getting ready for the party. Luis makes 6 sheets of cookies. Each sheet has 13 cookies on it. He also makes 4 trays of brownies. Each tray has 16 brownies on it. How many cookies and brownies did Luis make in all?

Answer:

Given,

Luis and Kyra are getting ready for the party. Luis makes 6 sheets of cookies. Each sheet has 13 cookies on it.

6 Ã— 13 = 78

He also makes 4 trays of brownies. Each tray has 16 brownies on it.

4 Ã— 16 = 64

78 + 64 = 142 cookies and brownies

**Bridges in Mathematics Grade 4 Home Connections Unit 2 Module 3 Session 4 Answer Key**

**Design a Floor Pattern**

Note to Families

This Home Connection combines math and design. Students use their creativity to design a pattern and then practice computation to determine how much it would cost to make that pattern in tiles.

Question 1.

Choose one of the two Floor Plans: Floor Plan 1 below or Floor Plan 2 on the back of this page. (If you really enjoy this project, you can do both.)

Answer:

Question 2.

Draw one of the following 3 tile designs in each square on your floor plan. Do not use the same design for every square.

Answer:

Question 3.

Answer questions 1-6 on the worksheet.

Floor Plan 1

Floor Plan 2

Answer:

Calculating the Costs of Your Floor Pattern(s)

Here is the cost of each tile.

Use your floor plan(s) and the information above to answer the questions below (Remember, you only have to do one of the floor plans, not both.)