3rd grade Operations & Algebraic Thinking

Using the Commutative Property, how else can we build this array?

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Brandon has 3 sheets of stickers. There are 8 stickers on each sheet. He wrote this number sentence to represent the total number of stickers.

3 x 8 = 24

What is a related number sentence that also represents the total number of stickers he has?

• 8 + 3 =

• 3 + 3 + 3 =

• 8 x 3 =

• 8 x 8 =

Tags

3.OA.B.5

Which expressions are represented by the arrays?

• (5 x 8) + (2 x 8)

• 7 x 7

• 7 x 8

• 4 x 10

• (5 x 6) + ( 5 x 7)

3 x ____ = 9 x 3

• 7

• 9

• 27

• 11

How is this array broken apart?

• (2 x 8) + (2 x 8)

• (2 x 3) + (2 x 3)

• (4 x 2) + (4 x 5)

How could the distributive property be used to solve 3 x 9?

• (3 x 6) + (3 x 3)

• (9 x 3) + (9 x 3)

• (3 x 3) + (9 x 5)

Which two multiplication equations match this array?

• 5 x 2 = 10

• 2 x 5 = 10

• 5 x 3 = 15

• 3 x 5 = 15

• 3+3+3+3+3=15

Oliver does not remember the answer to the multiplication fact 7 x 6.

Which expressions show ways Oliver could find the answer by putting two smaller products together?

Select the three correct answers.

• (1 x 6) + (6 x 6)

• (2 x 6) + (5 x 6)

• (4 x 3) + (3 x 3)

• (5 x 5) + (2 x 1)

• (7 x 3) + (7 x 3)

Which of the following represents the Commutative Property of Multiplication?

• 3 x 4 = 6 x 2

• 3 x 4 = 12 x 1

• 3 x 4 = 2 x 6

• 3 x 4 = 4 x 3

Which numbers correctly fill the boxes below?

9 × 4 = (☐ × 4) + (☐ × 4)

• 5, 4

• 6, 10

• 3, 3

• 2, 2