Multiplying and Dividing Decimals

Scientific Notation

100

Change this to Standard Notation:

2 x 10⁶

2000000

200

Change to Standard Notation

5.748 x 10⁰

5.748

300

Convert to Standard Notation

9.06 x 10^-4

0.000906

400

Convert to Scientific Notation:

538000000

5.38 x 10⁸

500

Convert to Scientific Notation:

0.00000967

9.67 x 10^-6

Dividing Decimals

100

37.10 divided by 14

2.65

200

232.4 divided by 28

8.3

300

206.4 divided by 12

17.2

400

5177 divided by 0.4

12942.5

500

2 divided by 3

0.3333333333333

Multiplying Decimals

100

2.3 x 8.4

19.32

200

0.2 x 0.9

0.18

300

0.9 x 9.8

8.82

400

1208.32 x 10.5

12687.36

500

123.81 x 4.56

564.5736

Word Problems

100

In 1967 a Super Bowl commercial cost $42,000. In 2004 one cost $2.5 million. How many times more did a commercial cost in 2004 than in 1967? (Round to the nearest tenth)

59.5 times more

200

7 people went out for lunch and the bill was $62.72. If they were to split the bill evenly, how much would each person pay?

$8.96

300

A person makes $121.65 a day at their job. How much would their paycheck be if they get paid every 2 weeks?

$1216.50

400

A recipe calls for 16 ounces of tomato paste and you only have a measuring cup in grams. How many grams of tomato paste would you need? (1 ounce is 28.35 grams)

453.6 grams of tomato paste

500

You go out and buy 3 2-liter sodas for a birthday party. The party has a punch bowl that can hold only one gallon of liquid at a time. How many gallons of soda do you have? (3.79 liters = 1 gallon) Round to the nearest hundredth of a gallon.

1.58 Gallons