Savvas (3rd Gr), Topic 3 Review: Build on Known Multiplication

Multiple Choice

Molly used the distributive property to decompose the array. How did she decompose it and what is the product?

• 1 x 7 + 5 x 7 = 42

• 5 x 7 + 1 x 7 = 42

• 7 x 1 + 7 x 5 = 42

• 6 x 7 = 42

Multiple Choice

How can you break apart 7 x 6?

• (7 x 3) + (7 x 3)
• (7 x 3) + (7 x 4)

Multiple Choice

2 x 12 = _____

• 20

• 24

• 14

• 16

Multiple Choice

What is the larger multiplication fact that was broken apart using the distributive property?

(5x4)+(5x3) = 20+15 = 35

• 5x5

• 4x3

• 5x7

Multiple Choice

What is the first step to solve this equation?

• multiply what is inside the parentheses

• multiply the 4

• add the 4

• add 4 and 3

Multiple Choice

Which expressions can we use from these:

• (6X6) + (3X6)

  = 36 + 18

  Ans: 54

• (5X6) + (5X6)

  = 30 + 30

  Ans: 60

• (7X7) + (10X1)

  = 49 + 10

  Ans: 59

• (10X6) + (10X6)

  = 60 + 60

  Ans: 120

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident