Ratios
Percents
Conversions
Simplify
Ratio Extras
100

There are 25 girls for every 4 boys. If there are 50 girls, how many boys would there be?

8 boys

100

What is 25% of 70?

17.5

100

Convert 36 inches to feet.

3 feet

100

Simplify 4:8

1:2

100

A recipe uses 3 cups of flour for every 2 cups of sugar. Draw a tape diagram showing the amounts for flour and sugar when sugar = 8 cups.

flour  (4) (4) (4) = 12 cups

sugar (4) (4) = 8 cups

200

What is the ratio of H's to L's?


H H L L L H L L L L H H

5:7

200

A shirt originally costs $40. It is on sale for 10% off. What is the sale price?

$36

200

Convert 16 quarts to gallons.

4 gallons

200

Simplify 75:100

3:4

200

For every 5 red marbles there are 7 blue marbles. If there are 70 blue marbles, use a tape diagram or ratio table to find the number of red marbles.

red (10) (10) (10) (10) (10) = 50

blue (10) (10) (10) (10) (10) (10) (10) = 70

300

The ratio of cats to dogs to rabbits is 2:3:5. If there are 15 rabbits, how many cats are there?

6 cats

300

A class has 30 students. 40% of them brought lunch from home. How many students brought lunch from home?

12 students

300

Convert 8 cups to quarts.

2 quarts

300

Simplify 85 to 90

17 to 18

300

A classroom mixes paint in the ratio 2 parts yellow : 5 parts blue. If the teacher needs 28 parts of paint total, how many parts of each color are needed? 


Hint: Use a tape diagram to find your answer.

yellow (4) (4) = 8

blue (4) (4) (4) (4) (4) = 20

400

What is the ratio of 8's to 3's to 1's?


8 8 8 8 9 0 1 1 3 2 1 1 4 5 8?

5:1:4

400

Emma scored 18 out of 24 on a quiz. What percent did she score (rounded to the nearest whole percent)?

75%

400

Convert 3 cups to fluid ounces.

24 fluid ounces

400

Simplify 14 to 36

7 to 18

400

A map scale shows 1 inch = 12 miles. How many miles are represented by 4.5 inches?

54 miles

500

What is the ratio of prime numbers to composite numbers?


2 5 4 17 19 22 20 18 14 12 13

5:6

500

If a box of cereal has a sale price of $2.40 and the sale price is 60% off, what is the original price?

Hint:

  • Sale price = original price − discount.
  • Discount = original price × 60%.
  • So sale price = original price × (100% − 60%) = original price × 40%.
  • To find original price, divide the sale price by 40%: original price = $2.40 ÷ 40%


 

$6

500

Convert 4 miles to feet.

21,120

500

Simplify 88:66

4:3

500

A toy car travels 45 meters in 3 seconds at constant speed. Graph distance versus time for 0, 1, 3, 5, and 7 seconds.

Meters:   0   15   30    45    75   105

Seconds: 0    1     2     3      5      7

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