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Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 5 Lesson 7 Fact Families existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 5 Lesson 7 Fact Families

Solve

Complete the fact family.

Question 1.
2 × 9 = 18
___ × 9 = 18
____ ÷ 9 = 2
18 ÷ 2 = ___
Answer:
2 x 9 = 18
9 x 2 = 18
18 ÷ 9 = 2
18 ÷ 2 = 9

Explanation:
Some multiplication and division sentences use the same numbers.
They make up a fact family
I wrote the fact family for the numbers 2, 9 and 18.

Question 2.
___ × 8 = 24
8 × 3 = ___
24 ÷ ___ = 8
24 ÷ ___ = 3
Answer:
3 × 8 = 24
8 × 3 = 24
24 ÷ 3 = 8
24 ÷ 8 = 3

Explanation:
Some multiplication and division sentences use the same numbers.
They make up a fact family
I wrote the fact family for the numbers 3, 8 and 24.

Question 3.
5 × 8 = ____
8 × ___ = 40
____ ÷ 5 = 8
40 ÷ ___ = 5
Answer:
5 × 8 = 40
8 × 5 = 40
40 ÷ 5 = 8
40 ÷8 = 5

Explanation:
Some multiplication and division sentences use the same numbers.
They make up a fact family
I wrote the fact family for the numbers 5, 8 and 40.

Question 4.
Write the fact family that uses 9, 1, and 9.
____ × ____ = ___
____ × ____ = ___
____ ÷ ____ = ___
____ ÷ ____ = ___
Answer:
9 × 1 = 9
1 × 9 = 9
9 ÷ 1 = 9
9 ÷ 9 = 1

Explanation:
Some multiplication and division sentences use the same numbers.
They make up a fact family
I wrote the fact family for the numbers 9, 1 and 9.

Question 5.
Kate has 16 balloons. She gives 2 friends an equal number of balloons. How many balloons does she give to each friend? ________
If she shares the balloons with 8 friends, how many balloons does she give each friend? _______
Answer:
16 ÷ 2 = 8
8 balloons for 2 friends each
16 ÷ 8 = 2
2 balloons for 8 friends each

Explanation:
Kate has 16 balloons
She gives 2 friends an equal number of balloons
Divide 16 with 2
16 ÷ 2 = 8
She gives 8 balloons to each of 2 friends
If she shares the balloons with 8 friends
Divide 16 with 8
16 ÷ 8 = 2
She gives 2 balloons to each of 8 friends.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 5 Lesson 8 Dividing by 1 – 5 existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 5 Lesson 8 Dividing by 1 – 5

Solve.

Divide.

Question 1.
36 ÷ 4 = __
Answer:

Explanation:
36 ÷ 4 = 9
Thirty six divided by four is nine.

Question 2.
6 ÷ 3 = ___
Answer:

Explanation:
6 ÷ 3 = 2
Six divided by three is two.

Question 3.
15 ÷ 5 = ___
Answer:
15 ÷ 5 = 3

Explanation:
I subtract 5 from 15 until i reach 0
I subtracted 5 from 15 three times
So, 15 ÷ 5 = 3.

Question 4.
14 ÷ 2 = __
Answer:
14 ÷ 2 = 7

Explanation:
I subtract 2 from 14 until i reach 0
I subtracted 2 from 14 seven times
So, 14 ÷ 2 = 7.

Question 5.

Answer:
5 ÷ 1 = 5

Explanation:
Any number divided by 1 is the number itself
So, 5 ÷ 1 = 5.

Question 6.

Answer:

Explanation:
28 ÷ 4 = 7
Twenty eight divided by four is seven.

Question 7.

Answer:
30 ÷ 5 = 6

Explanation:
I subtract 5 from 30 until i reach 0
I subtracted 5 from 30 six times
So, 30 ÷ 5 = 6.

Question 8.

Answer:

Explanation:
27 ÷ 3 = 9
Twenty seven divided by three is 9.

Question 9.
Children in elementary school need about 10 hours of sleep every night. Noah slept 40 hours in 5 nights. He slept the same number of hours each night. How many hours did he sleep each night? Did he get enough sleep?
Answer:
40 ÷ 5 = 8

Explanation:
I subtract 5 from 40 until i reach 0
I subtracted 5 from 40 eight times
So, 40 ÷ 5 = 8.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 6 Lesson 8 Multiplying by Breaking Apart existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 6 Lesson 8 Multiplying by Breaking Apart

Solve

Write the missing numbers. Find each product.

Question 1.
9 × 9 = 9 × (5 + 4)
9 × 9 = (9 × 5) + (9 × 4)
9 × 9 = 45 + 36
9 × 9 = 81

Question 2.
3 × 4 = 3 × (3 + 1)
3 × 4 = (___ × ___) + (3 × 1)
3 × 4 = ___ + ___
3 × 4 = ____
Answer:
3 x 4 = 12

Explanation:
3 × 4 = 3 × (3 + 1)
3 × 4 = (3 × 3) + (3 × 1)
3 × 4 = 9 + 3
So, 3 × 4 = 12

Question 3.
5 × 8 = 5 × (2 + 6)
5 × 8 = (___ × ___) + (___ × ____)
5 × 8 = ___ + ___
5 × 8 = ____
Answer:
5 x 8 = 40

Explanation:
5 × 8 = 5 × (2 + 6)
5 × 8 = (5 × 2) + (5 × 6)
5 × 8 = 10 + 30
So, 5 × 8 = 40

Question 4.
Taylor says 4 + 4 is the only way to break apart 8. Is she correct? If not, write three more ways.
Answer:
No, we have some more ways to break apart 8 other than 4 + 4

Explanation:
The other ways to break apart 8 are
8 = 1 + 7
8 = 2 + 6
8 = 5 + 3.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 6 Lesson 7 Grouping Numbers to Multiply existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 6 Lesson 7 Grouping Numbers to Multiply

Solve

Use ( ) to group the factors in two different ways. Find each product.

Question 1.
2 × 1 × 6 = (2 × 1); 12
2 × 1 × 6 = (1 × 6); 12

Question 2.
5 × 2 × 4 = ____
5 × 2 × 4 = ___
Answer:
5 × 2 × 4 = (5 x 2); 40
5 × 2 × 4 = (2 x 4); 40

Explanation:
One way:
5 x 2 x 4
= (5 x 2) x 4
= 10 x 4
= 40

Other way:
5 x 2 x 4
= 5 x  (4 x 2)
= 5 x 8
= 40
So, 5 x 2 x 4 = 40.

Question 3.
1 × 7 × 6 = ___
1 × 7 × 6 = ___
Answer:
1 x 7 x 6 = (1 x 7); 42
1 x 7 x 6 = (7 x 6); 42

Explanation:
One way:
1 x 7 x 6
= (1 x 7) x 6
= 7 x 6 = 42
Other way:
1 x 7 x 6
= 1 x (7 x 6)
= 1 x 42 = 42
So, 1 x 7 x 6 = 42.

Write the missing factor.

Question 4.
(5 × 1) × 8 = __ × (1 × 8)
Answer:
(5 × 1) × 8 = 5 × (1 × 8)

Explanation:
I does not matter how we group the factors, the products will be same
If the products will be same the numbers will be same
So, the missing factor is 5.

Question 5.
3 × (3 × 1) = (3 × ___) × 1
Answer:
3 × (3 × 1) = (3 × 3) × 1

Explanation:
I does not matter how we group the factors, the products will be the same
If the products will be the same the numbers will be the same
So, the missing factor is 3.

Question 6.
(2 × 2) × 4 = 2 × (2 × ___)
Answer:
(2 × 2) × 4 = 2 × (2 × 4)

Explanation:
It does not matter how we group the factors, the products will be the same
If the products will be the same the numbers will be the same
So, the missing factor is 4.

Question 7.
An octopus has 4 pairs of arms. How many arms do 3 octopuses have? Write a multiplication sentence with three factors using ( ). Then solve.
Answer:
(4 x 2) x 3 = 24

Explanation:
An octopus has 4 pairs of arms, that is 4 x 2
3 octopuses will have
The multiplication sentence with three factors using ( ) is (4 x 2) x 3
Solve:
(4 x 2) x 3
= 8 x 3
= 24
So, 3 octopuses will have 24 arms.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 6 Lesson 6 Multiplying by Multiples of 10 existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 6 Lesson 6 Multiplying by Multiples of 10

Solve

Multiply. Draw pictures or use objects if you need help.

Question 1.
9 × 10 = 90

Question 2.
5 × 50 = ___
Answer:

Explanation:
5 x 50 = 5 groups of 5 tens
5 groups of 5 tens = 25 tens
15 tens = 250
So, 5 x 50 = 250.

Question 3.
8 × 30 = ___
Answer:

Explanation:
8 x 30 = 8 groups of 3 tens
8 groups of 3 tens = 24 tens
24 tens = 240
So, 8 x 30 = 240.

Question 4.
2 × 40 = ___
Answer:

Explanation:
2 x 40 = 2 groups of 4 tens
2 groups of 4 tens = 12 tens
12 tens = 120
So, 3 x 40 = 120.

Question 5.
7 × 60 = ___
Answer:

Explanation:
7 x 60 = 7 groups of 6 tens
7 groups of 6 tens = 42 tens
42 tens  = 420
So, 7 x 60 = 420.

Question 6.
1 × 90 = ___
Answer:

Explanation:
1 x 90 = 1 group of 9 tens
1 group of 9 tens = 9 tens
9 tens = 90
So, 1 x 90 = 90.

Question 7.
6 × 20 = ___
Answer:

Explanation:
6 x 20 = 6 groups of 2 tens
6 groups of 2 tens = 12 tens
12 tens = 120
So, 6 x 20 = 120.

Question 8.
0 × 80 = ___
Answer:
0 x 80 = 0

Explanation:
The product of any number with 0 is 0
So, 0 x 80 = 0.

Question 9.
6 × 40 = ___
Answer:

Explanation:
6 x 40 = 6 groups of 4 tens
6 groups of 4 tens = 24 tens
24 tens = 240
So, 6 x 40 = 240.

Question 10.
Most people eat about 3 pounds of food every day. How many pounds of food would 70 people eat in one day?
Answer:

Explanation:
Most people eat about 3 pounds of food every day
To find the number of pounds of food 70 people eat in one day
Multiply 3 with 70
3 x 70 = 3 groups of 7 tens
3 groups of 7 tens = 21 tens
21 tens = 210
3 x 70 = 210
So, 70 people would eat 210 pounds of food in one day.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 6 Lesson 5 Multiplying by 10 existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 6 Lesson 5 Multiplying by 10

Multiply.

Question 1.
3 × 10 = 30

Question 2.
10 × 10 = ___
Answer:
10 x 10 = 100

Explanation:
Follow a pattern to multiply by 10
10 x 10 =
The tens digit of the product is the factor that i multiply by 10
The factor i multiplied by 10 is 10
10 x 10 = 10_
Write a 0 in the ones place
10 x 10 = 100.

Question 3.
1 × 10 = ___
Answer:
1 x 10 = 10

Explanation:
The product of any number by 1 is the number itself
So, the product of 1 and 10 is 10
So, 1 x 10 = 10.

Question 4.
4 × 10 = ___
Answer:
4 x 10 = 40

Explanation:
Follow a pattern to multiply by 10
4 x 10 =
The tens digit of the product is the factor that i multiply by 10
The factor i multiplied by 10 is 4
4 x 10 = 4_
Write a 0 in the ones place
4 x 10 = 40.

Question 5.

Answer:

Explanation:
Follow a pattern to multiply by 10
8 x 10 =
The tens digit of the product is the factor that i multiply by 10
The factor i multiplied by 10 is 8
8 x 10 = 8_
Write a 0 in the ones place
8 x 10 = 80.

Question 6.

Answer:

Explanation:
The product of any number by 0 is 0
So, 0 x 10 = 0.

Question 7.

Answer:

Explanation:
Follow a pattern to multiply by 10
2 x 10 =
The tens digit of the product is the factor that i multiply by 10
The factor i multiplied by 10 is 2
2 x 10 = 2_
Write a 0 in the ones place
2 x 10 = 20.

Question 8.

Answer:

Explanation:
Follow a pattern to multiply by 10
9 x 10 =
The tens digit of the product is the factor that i multiply by 10
The factor i multiplied by 10 is 9
9 x 10 = 9_
Write a 0 in the ones place
9 x 10 = 90.

Question 9.
Carmen has 6 dimes. How many cents does she have? ____
Answer:
60 cents

Explanation:
Carmen has 6 dimes
The value of each dime is 10 cents
To find the value of 6 dimes multiply 6 with 10
Follow a pattern to multiply by 10
6 x 10 =
The tens digit of the product is the factor that i multiply by 10
The factor i multiplied by 10 is 6
6 x 10 = 6_
Write a 0 in the ones place
6 x 10 = 60
So, Carmen have 60 cents.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 6 Lesson 4 Multiplying by 9 existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 6 Lesson 4 Multiplying by 9

Solve.

Multiply. Use drawings or objects if you need help.

Question 1.
7 × 9 = 63

Question 2.
3 × 9 = ___
Answer:

Explanation:
I drew 3 rows of 9 circles in each row to show the product
The product of 3 and 9 is 27
So, 3 x 9 = 27.

Question 3.
8 × 9 = ___
Answer:

Explanation:
I drew 8 rows of 9 circles in each row to show the product
The product of 8 and 9 is 72
So, 8 x 9 = 72.

Question 4.
1 × 9 = ___
Answer:

Explanation:
The product of any number with 1 is the number itself
So, 1 x 9 = 9.

Question 5.

Answer:

Explanation:
The product of 6 and 9 is 54
6 x 9 = 54.

Question 6.

Answer:

Explanation:
The product of 2 and 9 is 18
So, 2 x 9 = 18.

Question 7.

Answer:

Explanation:
The product of any number with 1 is the number itself
So, 1 x 9 = 9.

Question 8.

Answer:

Explanation:
The product of 4 and 9 is 36
So, 4 x 9 = 36.

Question 9.
Complete the 9s multiplication chart. Complete the sentences to tell what patterns you see in the answers.

Answer:

Explanation:
I wrote the multiplies of 9 in the 9s multiplication chart.
I see one increasing number pattern and one decreasing number pattern in the products.

Question 10.
When you multiply a factor by 9, the two digits in the answers add up to ___.
Answer:
9

Explanation:
If i multiply a factor by 9 the two digits in the answers add up to 9
The sum of the two digits of the answers is 9.

Question 11.
The factor multiplied by 9 is 1 ____________ than the digit in the tens place of the answer.
Answer:
1 less than

Explanation:
The factor multiplied by 9 is 1 less than the digit in the tens place of the answer
For example:
3 x 9 = 27
The factor is 3, the digit in tens place of the answer is 2
2 is 1 less than 3
So, the factor multiplied by 9 is 1 less than the digit in the tens place of the answer.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 6 Lesson 3 Multiplying by 8 existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 6 Lesson 3 Multiplying by 8

Solve

Multiply. Use drawings or objects if you need help.

Question 1.
9 × 8 = 72

Question 2.
2 × 8 = ___
Answer:

Explanation:
I drew 2 rows with 8 circles in each row to show the product
The product of 2 and 8 is 16
So, 2 x 8 = 16.

Question 3.
4 × 8 = __
Answer:

Explanation:
I drew 4 rows with 8 circles in each row to show the product
The product of 4 and 8 is 32
So, 4 x 8 = 32.

Question 4.
7 × 8 = ___
Answer:

Explanation:
I drew 7 rows with 8 circles in each row to show the product
The product of 7 and 8 is 56
So, 7 x 8 = 56.

Question 5.

Answer:

Explanation:
The product any number multiplied by 1 is the number itself
So, 1 x 8 = 8.

Question 6.

Answer:

Explanation:
The product of any number by 0 is 0
So, 0 x 8 = 0.

Question 7.

Answer:

Explanation:
I wrote to show the product of 6 and 8
So, 6 x 8 = 48.

Question 8.

Answer:

Explanation:
I wrote to show the product of 3 and 8
So, 3 x 8 = 24.

Question 9.
Complete the 8s multiplication chart.

Answer:

Explanation:
I wrote to complete the 8s multiplication chart.

Question 10.
Ms. Lybbert has 8 rose bushes in her garden. Each bush has 9 roses. How many roses does she have in all?
Answer:

Explanation:
Ms. Lybbert has 8 rose bushes in her garden
Each bush has 9 roses
I drew 9 rows of 8 circles in each row to show the product
The product of 9 and 8 is 72
9 x 8 = 72
So, Ms. Lybbert has 72 roses in all in her garden.

Question 11.
Ms. Lybbert sells 2 of her rose bushes. How many roses does she have now?
_________________
Answer:

Explanation:
Ms. Lybbert has 8 rose bushes in her garden
Each bush has 9 roses
Ms. Lybbert sells 2 of her rose bushes
8 – 2 = 6
I drew 6 rows of 9 circles in each row to show the product
The product of 6 and 9 is 54
6 x 9 = 54
So, Ms. Lybbert has 54 roses now in her garden.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 6 Lesson 2 Multiplying by 7 existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 6 Lesson 2 Multiplying by 7

Solve.

Multiply. Use drawings or objects if you need help.

Question 1.
7 × 7 = 49

Question 2.
1 × 7 = ___
Answer:

Explanation:
I drew circles to show the product
The product of any number multiplied with 1 is the number itself
So, 1 x 7 = 7.

Question 3.
4 × 7 = ___
Answer:

Explanation:
I drew to show the product
The product of 4 and 7 is 28
So, 4 x 7 = 28.

Question 4.
2 × 7 = ___
Answer:

Explanation:
I drew to show the product
The product of 2 and 7 is 14.
So, 2 x 7 = 14.

Question 5.

Answer:

Explanation:
I wrote to show the product
The product of any number with 0 is 0
So, 0 x 7 = 0.

Question 6.

Answer:

Explanation:
I drew to show the product
The product of 9 and 7 is 63
So, 9 x 7 = 63.

Question 7.

Answer:

Explanation:
I drew to show the product
The product of 3 and 7 is 21
So, 3 x 7 = 21.

Question 8.

Answer:

Explanation:
I drew to show the product
The product of 5 and 7 is 35
So, 5 x 7 = 35.

Question 9.
Why does it make sense that the product in Exercise 6 is greater than the product in Exercise 7?
Answer:
The fact of 7 in the exercise 6 is greater than the exercise 7
So, it make sense that the product in Exercise 6 is greater than the product in Exercise 7.

Question 10.
Steve walks his dog for 5 minutes every day. How many minutes does Steve walk his dog in 1 week?
Answer:

Explanation:
Steve walks his dog for 5 minutes every day
If he walks his dog for a week
Multiply 5 with 7 to find the answer
I drew to show the product
The product of 5 and 7 is 35
5 x 7 = 35
So, Steve walks his dog for 35 minutes in a week.

Question 11.
Steve decides to walk his dog for more time each day. He will begin walking his dog for 9 minutes every day. Now how many minutes will Steve walk his dog in 1 week?
Answer:

Explanation:
Steve decides to walk his dog for more time each day
He will begin walking his dog for 9 minutes every day
If he walks his dog for a week
Multiply 9 with 7 to find the answer
I drew to show the product
The product of 9 and 7 is 63
9 x 7 = 63
So, Steve walks his dog for 63 minutes in a week.