Fractions & Decimals
Scientific Notation, GCF, and LCM
Percents
Ratios & Rates
100

How do you change 3/8 to a decimal?

Divide 3 by 8.

100

Write in scientific notation:

0.000000005301

5.301 x 10-9

100

How do you change a decimal to a percent?

Multiply it by 100.

100

What is a ratio?

A comparison of two numbers.

200

639.3 ÷ 7.5

85.24

200

5.79 × 102 ________ 0.579

Use <, >, or =.

5.79 × 102 > 0.579

200

What is 15% of 24?

3.6

200

Do the ratios 3:6 and 16:8 form a proportion?

No.

300

Write your answer as a mixed number.

4/5\div6/25

1 1/3

300

What is the greatest common factor of 40 and 100?

20

300

What is 87.5% of 56?

49

300

54/24=9/x

x = 4

400

A member of the school track team ran for a total of 179.5 miles in practice over 12.5 days. How many miles did he average per day?

14.36 miles.

400

What is the least common multiple of 4, 8, 5, and 10?

40

400

Adelaide ate at a restaurant. The bill was $54 and she left an 18% tip. How much was the tip?

$9.72

400

If there are 48 ounces in 3 pounds, how many pounds are there in 1,456 ounces?

91 pounds

500

A farmer planted 7 1/5 acres of land with 9 types of wheat. If he planted an equal amount of each type of wheat, how many acres of each type did he plant?

4/5

500

Johnny and Ryan are playwrights. A literary critic notices that the two playwrights have written the same number of acts during their careers, even though all of Johnny's plays have 10 acts and all of Ryan's plays have 3 acts. What is the smallest number of acts each must have written?

30

500

Megan buys a carousel horse during a sale. It is 40% off. If the original price was $480, how much does Megan pay?

$288

500

A 12 oz box of Thanksgiving stuffing is $2.30 while a 16 oz box is $2.88. What is the unit cost of each AND which is a better buy?

The 12 oz box costs 19 cents per ounce.

The 16 oz box costs 18 cents per ounce.

So, the 16 oz box is the better buy.