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## McGraw-Hill Math Grade 3 Chapter 6 Test Answer Key

**Multiply**

Question 1.

6 × 10 = ___________

Answer:

6 × 10 = 60

Explanation:

adding it to itself a number of times,

The product of 6 and 10 is 60

6 x 10 = 60

10 x 6 = 60

Question 2.

2 × 90 = ___________

Answer:

180

Explanation:

adding it to itself a number of times,

The product of 2 and 90 is 180

2 x 90 = 180

Question 3.

0 × 9 = ___________

Answer:

0

Explanation:

adding it to itself a number of times,

The product of 0and 9 is 0

when we multiply a number with 0

the product remains 0

Question 4.

3 × 5 = ___________

Answer:

15

Explanation:

adding it to itself a number of times,

The product of 3 and 5 is 15

3 x 5 = 15

Question 5.

8 × 8 = ___________

Answer:

64

Explanation:

adding it to itself a number of times,

The product of 8 and 8 is 64

8 x 8 = 64

Question 6.

3 × 60 = ___________

Answer:

180

Explanation:

adding it to itself a number of times,

The product of 3a nd 60 is 180

3 x 60 = 180

Question 7.

9 × 7 = ___________

Answer:

63

Explanation:

adding it to itself a number of times,

The product of 9 and 7 is 63

9 x 7 = 63

Question 8.

7 × 6 = ___________

Answer:

42

Explanation:

adding it to itself a number of times,

The product of 7 and 6 is 42

7 x 6 = 42

Question 9.

3 × 8 = ___________

Answer:

24

Explanation:

adding it to itself a number of times,

The product of 3 and 8 is 24

3 x 8 = 24

Question 10.

Answer:

Explanation:

The product of 9 and 6 is 54

9 x 6 = 54

Question 11.

Answer:

Explanation:

The product of 5 and 8 is 45

5 x 8 = 45

Question 12.

Answer:

Explanation:

The product of 7 and 7 is 49

7 x 7 = 49

Question 13.

Answer:

Explanation:

The product of 1 and 2 is 2

1 x 2 = 2

Question 14.

Answer:

Explanation:

The product of 7 and 4 is 28

7 x 4 = 28

Question 15.

Answer:

Explanation:

The product of 3 and 9 is 27

9 x 3 = 27

Question 16.

Answer:

Explanation:

The product of 2 and 8 is 16

2 x 8 = 16

Question 17.

Answer:

Explanation:

The product of 8 and 7 is 56

8 x 7 = 56

Question 18.

Answer:

Explanation:

The product of 10a nd 9 is 90

10 x 9 = 90

Question 19.

Answer:

Explanation:

The product of 40 and 6 is 240

40 x 6 = 240

Question 20.

Answer:

Explanation:

The product of 70 and 1 = 70

70 x 1 = 70

Question 21.

Answer:

Explanation:

The product of 60 and 0 is 0

60 x 0 = 0

Question 22.

Answer:

Explanation:

The product of 90 and 3 is 270

90 x 3 = 270

Question 23.

Answer:

Explanation:

The product of 20 and 4 is 80

20 x 4 = 80

Question 24.

Answer:

Explanation:

The product of 50 and 1 is 50

50 x 1 = 50

Question 25.

Answer:

Explanation:

The product of 30 and 4 is 120

30 x 4 = 120

Question 26.

Each dance class has 6 students. There are 4 classes. How many dance students are there?

Answer:

24 students

Explanation:

Each dance class has 6 students. There are 4 classes.

6 x 4 = 24

There are 24 dance students

Question 27.

Bruno says 2 × 9 = 28. How can you tell he made a mistake?

Answer:

2 x 9 = 18

Explanation:

9 + 9 = 18

That is 2 x 9 = 18

he added 10 more to the product.

**Use () to group the factors in two different ways. Then find each product.**

Question 28.

5 × 2 × 1 = ____________

5 × 2 × 1 = ____________

Answer:

(5 × 2 )× 1 = 10 x 1 = 10

5 ×( 2 × 1) = 2 x 5 = 10

Explanation:

The product will be same when we change the place of the numbers

as the numbers are same the product doesn’t change

Question 29.

2 × 2 × 3 = _____________

2 × 2 × 3 = _____________

Answer:

(2 × 2) × 3 = 4 x 3 = 12

2 × (2 × 3) = 2 x 6 = 12

Explanation:

The product will be same when we change the place of the numbers

as the numbers are same the product doesn’t change

Question 30.

Find 7 × 8 by breaking apart 8. Use 5 as of the addends. Show your one work.

Answer:

7 x 8 = 56

Explanation:

7 x 8

8 can also written as 5 + 3

7 x 8 = 56

7 x 3 = 21

7 x 5 = 35

35 + 21 = 56

Question 31.

Look at the rows and columns for 2 and 4. Why are the numbers even? Explain using what you know about patterns.

Answer:

Even numbers

Explanation:

Any number that can be exactly divided by 2 is called as an even number

so, 2, 4 are even numbers

so, there product will be even numbers

Question 32.

This is part of the row for 9 in a multiplication table.

What number comes next in the row? How do you know?

Answer:

63

Explanation:

9 x 7 = 63

63 is the missing number in the given pattern

Question 33.

Latrell is making ladybugs based on a drawing in his science book. He uses I pipe cleaner for each leg. Every ladybug has 6 legs. How many ladybugs can he make if he has 30 pipe cleaners? Write a multiplication equation. Use a box for the unknown number. Then solve.

Answer:

5 lady bugs

Explanation:

The ladybug has 6 legs.

He has 30 pipe cleaners

5 x 6 = 30

30 divided by 6 is 5

Question 34.

Pedro stores 80 songs on his MP3 player. He listens to 2 different songs each day. How many songs are left for Pedro to listen to after 10 days? Write an equation using a letter for the number you don’t know. Then solve.

Answer:

60 songs

Explanation:

10 x 2 = 20

Let the unknown number be n

n = 80 – 20

n = 60

60 songs are left for Pedro to listen the songs after 10 days