Decimals Times Powers of Ten
Using Decimals in the Real World
Decimals Times
Whole Numbers
Moving the Decimal
Point
Decimals Times Decimals
100

0.305 x 10 = ?

3.05

100

Juan buys 2.8 pounds of turkey. The turkey costs $4.55 for each pound.

How much does Juan spend for the turkey?

$12.74

100

16.2 x 5 = ?

81

100

When multiplying decimals, in the answer, the decimal point moves how many places to the left in the problem .3 x .2?

2

100

When multiplying decimals 7.30 x .4, the digits in your answer move ___ places to the left. 

3

200

2.3 x 100 = ?

230

200

Joan puts $62 from each paycheck into her savings account. She gets paid every two weeks, or 26 times per year. Her goal is to save $1,500 this year. Will she reach her goal? Show your equation and answer. 

62 x 26 = 1,612.

Yes she will reach her goal because she passes the $1,500 goal mark. 

200

19.5 x 3 = ?

58.5

200

When multiplying decimals, in your answer the decimal moves ____ ? (left or right)

left

200

2.73 x 6.4 = ?

17.472

300

How do we express 1.7 x 10 x 10 x 10 as a power of ten multiplication problem (use exponents)

1.7 x 103

300

Jillian buys 3.6 meters of fabric. The fabric costs $5.75 for each meter.

How much does Jillian spend for the fabric?

$20.70

300

7.69 x 13 = ?

99.97

300

In your answer, how many places should you move the decimal point when multiplying .6 X .06?

3

300

54.86 x 3.5 = ?

192.01

400

0.4 x 104 = ?

4,000

400

Mary has 28.75 inches of ribbon. Each inch is 2.54 centimeters.

How many centimeters of ribbon does Mary have?

73.025 cm

400

53.4 x 9 = ?

480.6

400

When multiplying decimals times a power of 10, in your answer the decimal moves ____ ? (left or right)

right

400

22.6 x 8.15 = ?

184.19

500

3.2 x 106 = ?

3,200,000

500

Mia's best score on a video game is 40 points. Maya's best score on the game is 1.5 times as much as Mia's best score. 

How many points did Maya score on the video game?

Maya scored 60 points on the video game. 

500

21.9 x 22 = ?

481.8

500

In your answer, how many places should you move the decimal point when multiplying 6.8 X 109?

9

500

51.2 x 9.08 = ?

464.896

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