Multiplying Using Area Models

What multiplication problem is represented by this area model?

• 4 x 370

• 4 x 300

• 4 x 379

• 4 x 3,079

Tags

CCSS.4.NBT.B.5

What partial product goes in area A in this area model?

(a)  

Tags

CCSS.4.NBT.B.5

What partial product matches each letter?

• A=350 B=100 C=630 D=18

• A=3,500 B=10 C=630 D=18

• A=3,500 B=100 C=630 D=18

• A=3,500 B=100 C=540 D=18

Tags

CCSS.4.NBT.B.5

Use area model or partial product to solve: 81 x 25

(a)  

Tags

CCSS.4.NBT.B.5

Dasher is trying to figure out some last minute calculations before they hitch up the sleigh. He has drawn the following area model. What partial product is missing?

• 120

• 12

• 1,200

• 2,400

Tags

CCSS.4.NBT.B.5

What is the product of this area model?

• 1,248

• 624

• 2

Tags

CCSS.4.NBT.B.5

What partial product goes in area C?

• 24

• 27

• 36

• 40

Tags

CCSS.4.NBT.B.5

What are the colorful numbers inside the area model called? We add them together to get the product.

• quotient

• sum

• partial product

Tags

CCSS.4.NBT.B.5

Eric makes this model to multiply 67 x 83. He makes a mistake. What is Eric's mistake?

• 60 x 80 = 4,800

• 7 x 80 = 560

• 60 x 3 = 18

• 7 x 3 = 21

Tags

CCSS.4.NBT.B.5

If you were multiplying 562 x 54 how would you break up 562 in this area model?

• 5 + 6 + 2

• 50 + 60 + 2

• 500 + 60 + 2

• 5 + 60 + 200

Tags

CCSS.4.NBT.B.5