Multiplying Using Area Model

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

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

• 2000

• 2,025

• 1,040

What partial product matches each letter?

• A=250 B=100 C=630 D=18

• A=3,500 B=100 C=540 D=18

• A=3,500 B=100 C=630 D=18

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

If you were multiplying 678 x 29, how would you break apart 29 in this area model?

• 2 + 9

• 2 x 90

• 20 + 9

• 20 + 90

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

b

c

d

e

a

2100

14

2664

60

490

What partial product goes in area C?

• 24

• 27

• 36

• 40

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

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