4-1 Multiply by Multiples of 10

4-1 Multiply by Multiples of 10

​(Pages 130-132 in textbook)

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by Marissa Kane

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Multiple Choice

Find 50 x 20. How many zeros are in the product?

• 2

• 3

• 4

• 5

Multiple Choice

30 x 10 =

• 30

• 300

• 3,000

• 30,000

Multiple Choice

50 x 10 =

• 50

• 500

• 5,000

• 50,000

Multiple Choice

60 x 20 =

• 12

• 120

• 1,200

• 12,000

Multiple Choice

90 x 40 =

• 360

• 3,600

• 320

• 3,200

Multiple Choice

20 x 70 =

• 140

• 1,400

• 14,000

• 1,600

Find the missing factor

​10 x __ = 100

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​__ x 20 = 1.600

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​__ x 30 = 1,500

Multiple Choice

20 x __ = 1,000

• 5

• 50

• 500

• 5,000

Multiple Select

Select the TWO expressions that have a product of 1,600

• 20 x 80

• 20 x 60

• 40 x 40

• 90 x 20

Multiple Choice

Which expression has 50 as the missing factor?

• 20 x __ = 1,000

• 50 x __ = 3,000

• 30 x __ = 1,800

• 10 x __ = 1,000

Multiple Choice

__ x 90 = 8,100

• 80

• 90

• 9

• 900

Multiple Choice

30 x 500 =

• 1,500

• 15,000

• 150

• 150,000

Multiple Choice

5 x 30 =

• 1.500

• 150

• 180

• 1,800

Multiple Choice

6 x ? = 1,800

• 30

• 300

• 3,000

• 200