Multi-Digit Multiplication of Whole Numbers

Find the answer to 45 x 28 by using the area model above

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

• 120

• 1,200

• 700

What partial product goes in area C?

• 24

• 27

• 36

• 40

What place value units can you use for 400 x 80?

• 4 ones x 8 ones

• 4 tens x 8 tens

• 4 hundreds x 8 tens

• 40 tens x 80 tens

.

• a

• b

• c

• d

What is the right order of steps for multiplication with the Area model?

• Step 1.Add up all the partial products,

  
  

  Step 2.Break the numbers into expanded form,

  
  

  Step 3.Multiply to find the partial products.

• Step 1.Break the numbers into expanded form,

  
  

  Step 2.Multiply to find the partial products,

  
  

  Step 3.Add up all of the partial products.

What is the final product?

• 32,812

• 3,292

• 3,282

Which example of the distributive property matches the model?

• 5 x 6 = (4 x 6) + (1 x 6)

• 9 x 6 = (5 x 6) + (4 x 6)

• 9 x 6 = (5 x 4) + (4 x 4)

• 8 x 6 = (5 x 6) + (4 x 6)

What number goes in the BLUE box?

• 20

• 5

• 10

• 4

Which model represents 24 x26?

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