All the solutions provided in McGraw Hill My Math Grade 3 Answer Key PDF Chapter 7 Multiplication and Division will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 3 Answer Key Chapter 7 Multiplication and Division
Essential Question
What strategies can be used to learn multiplication and division facts?
Answer:
The strategies used to learn the multiplication and division facts are Multiply using a number line, use an array model, use a multiplication table, skip counting to multiply and use commutative and distribute property.
Am I Ready
Tell whether the groups in each pair are equal.
Question 1.
Answer:
In group 1 there are 5 clips.
In group 2 there are 5 clips.
Therefore 1 and 2 having the same number of clips. So, the groups in each pair are equal.
Question 2.
Answer:
In group 1 there are 6 flowers.
In group 2 there are 3 flowers.
The both the groups are having the different number of flowers. So, the groups in each pair is different.
Use the array to complete each pair of number sentences.
Question 3.
2 × ____________ = 8
8 ÷ ____________ = 4
Answer:
The number sentences are
2 x 4 = 8.
Multiplication of 2 with 4 then you get 8.
8 ÷ 2 = 4.
8 divided by 2 = 4.
Question 4.
1 × 3 = ______________
3 ÷ _____________ = 3
Answer:
The number sentences are
1 x 3 = 3.
Multiplication of 1 with 3 then you get 3.
3 ÷ 1 = 3
3 divided by 1 = 3.
Draw lines to match the division sentence to the related multiplication sentence.
Answer:
Question 9.
Algebra Mrs. June wants to divide 30 folders equally among 10 students. How many folders will each student get? Write a division sentence with a symbol for the unknown. Then solve.
Answer:
Given that,
Mrs. June wants to divide 30 folders equally among 10 students.
The number of folders that each student get is 30 ÷ 10 = 3.
Therefore each student get the 3 folders.
The unknown is 3.
My Math Words
Review Vocabulary
dividend
divisor
inverse operations
quotient
Making Connections
Read and solve the word problem. Use the review vocabulary to complete the graphic organizer.
Answer:
Given that,
The total students go the field trip = 20.
The total students divided equally into 5 cars.
The number of students in each car is 20 ÷ 5 = 4.
My Vocabulary Cards
Ideas for Use
- Use the blank cards to write your own vocabulary cards.
Write this chapter’s essential question on the front of a blank card. Write words or phrases from the lessons that help you answer the essential
When any number is multiplied by 1, the product is that number.
How can this property help you solve multiplication problems with a factor of 1?
Answer:
Here we use the identity property of multiplication.
For example
1 x 1 = 1.
2 x 1 = 2
3 x 1 = 3.
Ans so on.
To separate into parts.
Explain how decomposing into known facts can help make a difficult math fact easier to solve.
Answer:
Decomposing of numbers means breaking down the numbers into parts. It helps in understanding the different place value of different digits in the numbers.
When any number is multiplied by 0. the product is zero.
How can this property help you solve multiplication problems with a factor of 0?
Answer:
Here it is the multiplication property of zero. If any number multiplied by Zero then you get zero.
For example.
1 x 0 = 0.
2 x 0 = 0.
And so on.
A fact that you know by memory.
When might you use a known multiplication fact?
Answer:
we use the multiplication to known the multiplication fact.
3 x 6 = 18.
Here 18 is the multiplication fact.
3 x 6 = 18 is the process of multiplication.
My Foldable
Follow the steps on the back to make your Foldable.
Answer:
