All the solutions provided in **McGraw Hill Math Grade 3 Answer Key PDF Chapter 8 Lesson 3 Divide by 6 and 7** will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 3 Answer Key Chapter 8 Lesson 3 Divide by 6 and 7

**Math in My World**

Example 1

Paco set each picnic table with 6 dinner plates. He used 24 plates to set the tables. How many tables did he set?

Find 24 ÷ 6, or .

One Way Draw an array.

Draw an array. Think of a related multiplication fact. Each column represents one table with ___ plates.

There are ____ columns.

You know that 6 × ___ = 24. So, there will be ___ tables.

Another Way Use repeated subtraction.

Skip count backwards. Draw the arrows to represent equal groups of 6.

There are ____ groups of 6 in ____.

So, 24 ÷ 6 = ___, or Paco set ___ tables.

Answer:

Given that,

Paco set each picnic table with 6 dinner plates.

He used 24 plates to set the tables.

Each column represents one table with 6 plates.

There are 4 columns.

We know that 6 × 4 = 24.

So, there will be 24 tables.

The array of 6 x 4 = 24.

The another way is the repeated subtraction.

There are 4 groups of 6 in picnic table.

So, 24 ÷ 6 = 4.

Example 2

Mr. Jeremiah has 21 reports to grade. He will grade the same number of reports each day for 7 days. How many reports will he grade each day?

Find the unknown in 21 ÷ 7 = , or .

Use the inverse operation of multiplication to find the unknown factor.

21 ÷ 7 =

7 × = 21

7 × ___ = 21

**Helpful Hint**

7 times what number equals 21?

Mr. Jeremiah will grade ____ reports each day.

Answer:

Given that,

Mr. Jeremiah has 21 reports to grade.

He will grade the same number of reports each day for 7 days.

So, 21 ÷ 7 = 3.

7 x 3 = 21.

The unknown is 3.

Mr. Jeremiah will grade 3 reports each day.

**Guided Practice**

Question 1.

Divide. Write a related multiplication fact.

18 ÷ 6 = ____

6 × ___ = ____

Answer:

18 divided by 6 equal to 3.

18 ÷ 6 = 3.

Multiplication of 6 with 3 then you get 18.

6 x 3 = 18.

**Use repeated subtraction to divide. Draw the arrows.**

Question 2.

Answer:

12 divided by 6 equal to 2.

**Talk Math**

Are using related multiplication and division facts the same thing as using fact families? Explain.

Answer:

In the facts family there is a set of four related multiplication and division facts.

They are two division facts and 2 multiplication facts.

Example.

The facts of 2 , 3, 6 is.

2 x 3 = 6.

3 x 2 = 6.

6 ÷ 2 = 3.

6 ÷ 3 = 2.

Question 3.

Answer:

7 divided by 7 equal to 1.

**Independent Practice**

**Divide. Write a related multiplication fact.**

Question 4.

36 ÷ 6 = ____

Answer:

36 divided by 6 equal to 6.

36 ÷ 6 = 6.

The related multiplication fact is 6 x 6 = 36.

Question 5.

48 ÷ 6 = ____

Answer:

48 divided by 6 equal to 8.

48 ÷ 6 = 8.

The related multiplication fact is 8 x 6 = 48.

Question 6.

60 ÷ 6 = ____

Answer:

60 divided by 6 equal to 10.

60 ÷ 6 = 10.

The multiplication fact is 6 x 10 = 60.

Question 7.

Answer:

63 divided by 7 equal to 9.

The related multiplication fact is 9 x 7 = 63.

Question 8.

Answer:

49 divided by 7 equal to 7.

The related multiplication fact is 7 x 7 = 49.

Question 9.

Answer:

28 divided by 7 equal to 4

The related multiplication fact is 7 x 4 = 28.

**Algebra Draw an array and use the inverse operation to find each unknown.**

Question 10.

42 ÷ ? = 7

6 × ___ = 42

? = _____

= ____

Answer:

42 divided by 6 equal to 7.

42 ÷ 6 = 7.

Multiplication of 6 with 7 then you get 42.

? = 6.

The unknown equal to 7

The array of 6 x 7 is

Question 11.

30 ÷ ? = 7

5 × = 30

? = _____

= ____

Answer:

30 divided by 5 equal to 6.

30 ÷ 5 = 6.

Multiplication of 5 with 6 then you get 30.

5 x 6 = 30.

? = 5

The unknown equal to 6.

The array of 5 x 6 is

Question 12.

54 ÷ ? = 9

6 × = 54

? = _____

= ____

Answer:

54 divided by 6 equal to 9.

54 ÷ 6 = 9.

Multiplication of 6 with 9 then you get 54.

? = 6.

The unknown is 9.

The array of 6 x 9 is

Question 13.

35 ÷ 7 = ?

× 5 = 35

? = _____

= ____

Answer:

35 divided by 7 equal to 5.

35 ÷ 7 = 5.

Multiplication of 7 with5 then you get 35.

7 x 5 = 35.

? = 5.

The unknown is 7.

The array of 7 x 5 is

**Use a related multiplication fact to find each quotient. Draw a line to match.**

Answer:

**Problem Solving**

Question 20.

Elena is making 7-foot kite tails How many kite tails can Elena make if she has 56 feet of tail fabric? Write a division sentence and a related multiplication fact.

Answer:

Given that,

Elena is making 7-foot kite tails

she has 56 feet of tail fabric.

The number of kite tails can Elena make is 56 ÷ 7 = 8.

Therefore she make 8 kite tales using the 56 feet of tail fabric.

Question 21.

**Mathematical PRACTICE 6 Explain to a Friend** There are 35 students with 7 students at each table in Cafeteria 1. Cafeteria 2 has 35 students with 5 students at each table. Which cafeteria has more tables? Explain.

Answer:

Given that,

In Cafeteria 1 there are 35 students with 7 students at each table.

In Cafeteria 2 there are 35 students with 5 students at each table.

The number of tables in Cafeteria is 35 ÷ 7 = 5.

The number of tables in Cafeteria is 35 ÷ 5 = 7.

Therefore the Cafeteria 2 has more tables.

**HOT PRoblems**

Question 22.

**Mathematical PRACTICE 3 Which One Doesn’t Belong?** Identify the division problem that does not belong with the others by circling it. Explain.

Answer:

56 divided by 7 equal to 8.

56 ÷ 7 = 8.

49 divided by 7 equal to 7.

49 ÷ 7 = 7.

63 divided by 7 equal to 9.

63 ÷ 9 = 7.

48 divided by 7 not belong to remaining 3 because by dividing we get the remainder.

Question 23.

**? Building on the Essential Question** How does learning multiplication and division facts at the same time help learn them quicker?

Answer:

It is easy to learn the multiplication and division facts at the same time. Because the same numbers are used in learning multiplication and division. using the correct terminology we can enhance the conversations and instructions about basic facts.

### McGraw Hill My Math Grade 3 Chapter 8 Lesson 3 My Homework Answer Key

**Practice**

**Use repeated subtraction to divide. Draw the arrows.**

Question 1.

28 ÷ 7 = ____

Answer:

28 divided by 7 equal to 4.

28 ÷ 7 = 4.

Question 2.

Answer:

**Divide. Write a related multiplication fact.**

Question 3.

54 ÷ 6 = ____

Answer:

54 divided by 6 equal to 9.

54 ÷ 6 = 9.

The related multiplication fact is 9 x 6 = 54.

Question 4.

21 ÷ 7 = ___

Answer:

21 divided by 7 equal to 3.

21 ÷ 3 = 7.

The related multiplication fact is 7 x 3 = 21.

Question 5.

49 ÷ 7 = ___

Answer:

49 divided by 7 equal to 7.

49 ÷ 7 = 7.

The related multiplication fact is 7 x 7 = 49.

Question 6.

Answer:

48 divided by 6 equal to 8.

48 ÷ 6 = 8.

Question 7.

Answer:

63 divided by 7 equal to 9.

63 ÷ 7 = 9.

Question 8.

Answer:

30 divided by 6 equal to 5.

30 ÷ 6 = 5.

**Problem Solving**

**Mathematical PRACTICE 4 Model Math Write a division sentence to solve. Then write a related multiplication sentence.**

Question 9.

There are 42 cards dealt to the players in a card game. Each player gets 7 cards. How many players are in the game?

Answer:

Given that,

There are 42 cards dealt to the players in a card game.

Each player gets 7 cards.

So, 42 ÷ 7 = 6.

Therefore there are each players in the game.

Question 10.

Mr. Clancy bought 9 cans of paint. His total was $54. Each can of paint was the same price. How much did each can of paint cost?

Answer:

Given that,

Mr. Clancy bought 9 cans of paint.

The total of 9 cans is $54.

Each can of paint was the same price.

So, $54 ÷ 9 = 6.

Therefore the cost of each can is $6.

Question 11.

Franklin’s mother is making 6 snack bags for his campout. She will put 18 cherry fruit rolls and 18 grape fruit rolls into the bags. If she puts the same number in each bag, how many fruit rolls will be in each snack bag?

Answer:

Given that,

Franklin’s mother is making 6 snack bags for his campout.

She will put 18 cherry fruit rolls and 18 grape fruit rolls into the bags.

The total number of fruit rolls are 18 + 18 = 36.

So, 36 ÷ 6 = 6.

Therefore there are 6 fruit rolls in each snack bag.

**Test Practice**

Question 12.

Mrs. Tanner’s class of 7 students decided to adopt an animal at a zoo. How much would each student need to pay in order to adopt an animal from the Zoo Friend Level?

A. $35

B. $8

C. $7

D. $5

Answer:

Given that,

Mrs. Tanner’s class of 7 students decided to adopt an animal at a zoo.

The cost of the animal to adopt from zoo level is $35.

The number of friends are 7.

So, $35 ÷ 7 = 5.

Option D is the correct answer.