Partial Areas

The area model represents 38 X 16.

Which answer shows all the correct partial products?

• 300 + 180 + 8 + 48

• 30 + 180 + 80 + 48

• 300 + 180 + 80 + 48

• 300 + 18 + 80 + 48

The area model represents 72 X 59.

What is the product of the red section?

• 70 X 9 = 63

• 70 X 9 = 630

• 70 X 9 = 6.3

• 70 X 9 = 6300

Find the product. Use the areas shown in the model to help.

What multiplication problem is represented by this area model?

• 4 x 370

• 4 x 300

• 4 x 379

• 4 x 3,079

Look at Allison's area model for the multiplication problem. What did Allison do wrong? Check all that apply.

• Allison did not write the answer correctly in standard form.

• Allison set up the area model incorrectly.

• Allison did not multiply her partial products correctly.

• Allison added her partial products incorrectly.

Answer explanation

Allison did not multiply 100 hundredths x 20 correctly: 100 x 20 = 2,000

Allison did not write the standard form correctly in hundredths: 16.14

Select the correct equations that belong in the area model.

• 60 x 30

• 30 x 4

• 6 x 3

• 60 x 2

• 4 x 2

Which box in the area multiplication problem is WRONG?

• 50 x 80 = 4,000

• 7 x 50 = 350

• 50 x 9 = 450

• 7 x 9 = 63

Based on the area model, what is the product of 13 and 7?

• 70

• 21

• 91

• 49

Find the product of 54 x 9 using the partial product method.

• 586

• 486

What partial product goes in area A?

• 120

• 12,000

• 1,200

• 700