Lesson 3: Split Numbers to Multiply Quiz

Claire has 6 plates. She puts 7 muffins on each plate. She finds the total number of muffins by using the model below.

Which expressions show Claire's model?

Remember that you want to do the equation in the parentheses first. Use your Jamboard as scrap paper to show your work.

• ( 7 + 4 ) x ( 7 + 2 )

• ( 4 x 2 ) x 7

• ( 4 x 3 ) + ( 4 x 4 )

• ( 7 x 4 ) + ( 7 x 2 )

Blake wants to break apart the 7 in 5 x 7. Complete the equations to show two different ways Blake could break apart the 7.

Chose more than one answer.

Hint: There are two answers.

Remember you want to do the equations in the parentheses first.

Use your Jambord to show your work.

• 5 x 7 = 5 x ( 5 + 2 )

• 5 x 7 = 5 x ( 2 + 5 )

• 5 x 7 = 5 x ( 10 + 10 )

• 5 x 7 = 5 x ( 9 + 3 )

4 x ( 3 + 6 )

Is the expression equal to 4 x 9?

Choose Yes or No.

Remember to use your Jambord to show your work.

• Yes

• No

( 1 + 3 ) x 9

Is the expression equal to 4 x 9?

Choose Yes or No.

Remember to use your Jambord to show your work.

• Yes

• No

( 2 x 9 ) + ( 2 x 9 )

Is the expression equal to 4 x 9?

Choose Yes or No.

Remember to use your Jambord to show your work.

• Yes

• No

( 4 x 4 ) + ( 4 x 4 )

Is the expression equal to 4 x 9?

Choose Yes or No.

Remember to use your Jambord to show your work.

• Yes

• No

Brian has 6 packs of crayons. There are 4 crayons in each pack. He wants to know how many crayons he has in all.

Brain says that the expression ( 2 + 2 ) + 6 can be used to find the total number of crayons.

What is Brian doing wrong? Explain your answer in complete sentences.

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