McGraw Hill Math Grade 3 Chapter 5 Lesson 6 Answer Key Finding a Missing Factor

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McGraw-Hill Math Grade 3 Answer Key Chapter 5 Lesson 6 Finding a Missing Factor

Solve

Divide to find the missing factor.

Question 1.
25 ÷ 5 = 5
5 × 5 = 25

Question 2.
3 × ? = 18
___ ÷ ___ = ___
3 × ___ = 18
Answer:
18 ÷ 3 = 6
3 x 6 = 18

Explanation:
Division can help to multiply
3 x ? = 18
The division sentence with the given numbers
18 ÷ 3 = ?
18 ÷ 3 = 6
The quotient is the missing factor
So, 3 x 6 = 18.

Question 3.
2 × ? = 14
___ ÷ ___ = ___
2 × ___ = 14
Answer:
14 ÷ 2 = 7
2 x 7 = 14

Explanation:
Division can help to multiply
2 x ? = 14
The division sentence with the given numbers
14 ÷ 2 = ?
14 ÷ 2 = 7
The quotient is the missing factor
So, 2 x 7 = 14.

Write a multiplication sentence to find the quotient.

Question 4.
15 ÷ 3 = ?
___ × ___ = ___
15 ÷ 3 = ___
Answer:
3 × 5 = 15
15 ÷ 3 = 5

Explanation:
Multiplication can help to divide
15 ÷ 3 = ?
The multiplication equation with the given numbers
3 x ? = 15
3 x 5 = 15
So, 15 ÷ 3 = 5.

Question 5.
32 ÷ 4 = ?
___ × ___ = ___
32 ÷ 4 = ___
Answer:
4 × 8 = 32
32 ÷ 4 = 8

Explanation:
Multiplication can help to divide
32 ÷ 4 = ?
The multiplication equation with the given numbers
4 x ? = 32
3 x 8 = 32
So, 32 ÷ 4 = 8.

Question 6.
35 ÷ 5 = ?
___ × ___ = ___
35 ÷ 5 = ___
Answer:
5 × 7 = 35
35 ÷ 5 = 7

Explanation:
Multiplication can help to divide
35 ÷ 5 = ?
The multiplication equation with the given numbers
5 x ? = 35
5 x 7 = 35
So, 35 ÷ 5 = 7.

Question 7.
For healthy eating, children should eat 1 cup of fruit each day. Lidia eats 7 cups of fruit in 1 week. She eats the same amount of fruit each day. Does she eat enough fruit? Write a division sentence and a multiplication sentence to find the answer.
Answer:
7 ÷ 1 = 7
7 x 1 = 7

Explanation:
For healthy eating, children should eat 1 cup of fruit each day
Lidia eats 7 cups of fruit in 1 week
She eats the same amount of fruit each day
A week has 7 days
The multiplication equation to find the answer is
1 x 7 = 7
The division equation to find the answer is
7 ÷ 1 = 7
Yes, she ate 1 cup of fruit each day and that is enough for healthy eating.

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