Multiplication of Multi-Digit 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

Which multiplication equations are ways to show 420? Select ALL that applies.

• 60 x 7

• 7 x 60

• 7 x 70

• 70 x 60

.

• 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.

Which Partial Product belongs in the yellow box

• 210

• 2100

• 21

• 12

What is the final product?

• 32,812

• 3,292

• 3,282

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