CH5 Review (Diff.)

 $20\times30$  

• 30,000

• 600

• 18,000

• 2,400

 $5\times300$  

• 3,000

• 1,500

• 18,000

• 300

 $400\times30$  

• 3,000

• 30

• 1,200

• 12,000

 $30\times30$  

• 60

• 90

• 600

• 900

Estimate. 
 58 x 61 =

• 3,000
• 4,000
• 3,600
• 360

Estimate:
27 x 12

• 30
• 200
• 20
• 300

Estimate.
19 x 74

• 700
• 140
• 1,400
• 14,000

67 x 8 =

• 425

• 536

• 627

• 892

Ms. Taylor bought 32 boxes of smencils with 25 smencils in each box. She wanted to use partial products to find the total amount of smencils that she bought. Which number is missing?

• 60

• 6000

• 600

• 150

The area model represents 23 X 47.

Which answer shows all the correct partial products?

• 800 + 140 + 12 + 21

• 800 + 140 + 120 + 21

• 80 + 140 + 120 + 21

• 800 + 14 + 120 + 21