Chapter 4 Mid-Chapter Review

Select the multiplication sentence for the follow example:

• 3 x 8 = 24
• 6 x 5 = 30
• 2 x 9 = 18
• 3 x 6 = 18

Which expression is equal to 6 X 9?

• 6 x (3 + 3)
• 6 x (5 + 5)
• 6 x (5 + 4)
• 6 x (3 + 4)

Select the correct number model with the rectangular array

• 4+4+4+4=16
• 2+2+2+2=8
• 2+2=4
• 4+4=8

What number sentence shows one way to break apart this array?

• (4x2) + (4x2) = 16
• (2+2) + (2+2) = 8
• (5+5) + (5+5) = 20
• (3x3) + (3x3) = 18

A __________________ of 4 is any product that has 4 as one if its factors.

• Commutative Property
• multiple
• Distributive Property
• factor

Alexis has 4 bags of pencils. In each bag there is 5 pencils.  How many pencils does Alexis have?

• 5 + 5 = 10
• 5 x 4 = 20
• 5 x 1 = 5
• 5 x 5 = 25

Shelly can paint 3 pictures in a day.  How many pictures can she paint in 6 days?

• 3 x 1 = 3
• 3 x 6 = 18
• 3 + 6 = 9
• 3 x 2 = 6

This property says that multiplying a sum by a number is the same as multiplying each addend by the number and then adding the products.

• Associative
• Commutative
• Identity
• Distributive

What is the multiplication expression for this array?

• 6x3
• 3x6
• 3x5
• 5x3

Sam walked his dog twice a day for 5 days.  Ann walked her dog three times a day for 4 days.  Who walked their dog more times? 

• Sam
• Ann
• They both walked the same