Multiply Decimals Review

Multiply Decimals by Powers of 10

Multiple Choice

0.0867 x 100

• 86.7

• 8.67

• 0.867

Multiple Choice

43.2 x 10³

• 4.320
• 432
• 4,320
• 43,200

Multiple Choice

42.8 x 10²

• 42.80
• 428
• 4,280
• 0.428

Multiple Choice

66.79 × 10 ² =

• 667.9
• 0.6679
• 6.679
• 6679

Multiple Choice

0.149 x 100

• 14.9
• 1.49
• 0.00149
• 1,490

Multiple Choice

0.74 x 10³

• 740
• 7.4
• 74
• 0.0074

Multiple Choice

32.32 multiplied by 100

• 32.32
• 3232
• .3232
• 3.232

Multiple Choice

Which power of 10 will make this number sentence true?
0.4 x _____= 4

• 100
• 10
• 1,000
• 0

Multiple Choice

Solve.
7.652 x 100

• 7.652
• 76.52
• 765.2
• .7652

Multiple Choice

2.398 x 10³

• 239.8
• 2398
• 23980
• 23.98

Multiple Choice

17.5 x 1000

• 1.75

• 175

• 17,500

• 0.175

Multiple Choice

4.96 x 10

• 49.6

• 496

• .496

• 4960

Multiple Choice

0.085 x 100

• 0.85

• 8.5

• 85

• 850

Multiple Choice

2.7 x 10

• 270
• 0.27
• 27
• 0.027

Multiple Choice

156.34 x 10 = 

• 1,563.4
• 15,634
• 15.634

Multiple Choice

7.129 × 100 = 

• 712.9
• 71.29
• 0.7129
• 0.07129

Multiple Choice

Estimate the product.

19.3 x 6

• 120

• 150

• 30

• 90

Multiple Choice

Estimate. 78.9 x 3

• 200

• 240

• 280

• 320

Multiple Choice

Estimate. 51.2 x 9

• 400

• 450

• 500

• 550

Multiple Choice

Estimate. 82.2 x 2

• 100

• 120

• 140

• 160

Multiple Choice

Estimate. 4.7 x 10

• 40

• 50

• 60

• 70

Multiple Choice

Estimate  3.555 x 2.012

• 15
• 12
• 80
• 8

Multiple Choice

Estimate 5.13 x 6.2

• 25
• 30
• 32
• 28

Multiple Choice

Estimate  6.09 x 0.82

• 6
• 7
• 60
• 70

Multiple Choice

Estimate 4.5 x 3.78

• 25
• 20
• 200
• 250

Multiple Choice

Estimate 2.5 × 6.7

• 10

• 21

• 25

• 12

Multiple Choice

Estimate 16.25 × 1.3

• 16

• 0

• 1

• 32

Multiple Choice

Estimate 2.6 × 5.46

• 0

• 15

• 20

• 12

Multiple Choice

Estimate 2.3 × 1.21

• 0

• 1

• 2

• 3

Multiple Choice

Estimate 15.25 x 3.07

• 60

• 45

• 30

• 25

Multiple Choice

Estimate 2.1 x 3.7

• 6

• 8

• 0

• 2

Multiple Choice

One pound of bananas costs $0.95. If a bunch of bananas weigh 1.78 pounds, about how much would the bunch of bananas cost?

• $3

• $1.50

• $2

Multiple Choice

Estimate 32.8 x 21.2

• 600

• 60

• 80

Multiple Choice

A King Palm (tree) can grow about 2.1 feet a year. Estimate the height of the King Palm after 15 years.

• 10
• 20
• 30
• 40

Multiple Choice

Earth is rotating around the sun at about 18.6 miles per second.  About many miles does it travel in 4.8 seconds?

• 50 miles
• 100 miles
• 150 miles
• 200 miles

Multiple Choice

Estimate the product of 28.21 and 8.02

• 210

• 220

• 230

• 240

Multiple Choice

Estimate the product of 44.5 and 2.1

• 90
• 80
• 70
• 60

Multiple Choice

Estimate the product of 18.5 and 8.4

• 140
• 150
• 160
• 170

Multiple Choice

Estimate the product of 9.7 and 3.3

• 33
• 30
• 40
• 41