Mid-Chapter Checkpoint--Chapter 2--4th Grade

Numbers that are easy to compute mentally.

• Regroup

• Factor

• Compatible Numbers

• Estimate

A number that is multiplied by another number to find a product.

• Factor

• Estimate

• Partial Product

• Rounding

The property that states when the other of two factors is changed, the product is the same.

• Associative Property

• Estimate

• Commmutatie Property

• Regrouping

Find the correct product.

35 X 10

• 3,500

• 350

• 35,000

• 35

Find the correct product

19 X 20

• 3,800

• 370

• 380

• 450

Find the correct product

12 X 80

• 960

• 690

• 069

• 096

Find the correct product

70 X 50

• 350

• 053

• 3,500

• 35,000

Find the correct product

58 X 40

• 3,220

• 2,320

• 5,430

• 3,520

Find the correct product

30 X 40

• 120

• 240

• 1,200

• 2,100

Find the correct product

14 X 60

• 480

• 840

• 930

• 560