Multiply 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

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

• 120

• 1,200

• 12,000

• 700

What is the partial product way to solve 3 x 45?

• (30 x 4) + (30 x 5)

• 3 x 40 x 5

• 3 x (4 + 5)

• (3 x 40) + (3 x 5)

Which of the following shows the correct way to use expanded form to multiply 3,472 x 9?

• 3,472 x 9

• (3,000 x 472) + 9

• (9 x 3,000) + (9 x 400) + (9 x 70) + (9 x 2)

• (9 x 3,472) + (9 x 3,472)

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

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

What goes in the box with the question mark?

• 40 x 5

• 30 x 6

• 6 x 40

• 5 x 6

Jack Frost is working on some math calculations while he waits for the first big snow. What problem is he trying to solve with this area model?

• 764x2

• 382x2

• 600x2

• 300,802x2

Fill in the missing pieces of the generic rectangle and then find the total area.

b

c

d

e

a

14

2100

60

490

2664

When using the area model to solve this problem, what is the product of 30 x 5?

• 15

• 1500

• 150