Chapter 4 Review pg. 194

Find the product of 50 x 20.

80 x 10.

60 x 50.

70 x 11.

20 x 75.

20 x ______ = 1,200

Estimate the product of 25 x 74

Estimate the product of 42 x 81.

Write two possible factors that can be estimated as shown for the number 400.

• 18 x 22 =

  20 x 20

• 89 x 88 =

  90 x 90

• 38 x 89

  40 X 80

• 85 x 26

  90 X 30