Math review

Ratios

100

Simplify 10:15

2:3

200

Simplify 24:16

3:2

300

Simplify 108:36

9:3

400

Simplify 100:50

2:1

500

Simplify 30:120

2:8 or 1:4

Rates

100

If you ran 100 miles in 25 minutes how many miles did you run in 1 minute?

4 mph

200

If 9 ice creams cost $18 what is the cost per ice cream?

$2

300

If 6 snack bars cost $18 what is the price per bar?

$3

400

If you walked 75 kilometers in 600 minutes what is your kilometer per hour rate?

7.5

500

If a car travels 256 miles in 5 hours what is your rate?

51.2 mph

Gcf/Lcm

100

GCF of 10 and 20?

10

200

Lcm of 3 and 2?

6

300

LCM of 12 and 18?

36

400

GCF of 16 and 24?

8

500

GCF 0f 14, 28, and 56? 

14

Percents

100

What is 15% of 63?

9.45

200

25% of 120

30

300

20% of what number is 45?

225

400

What percent of 42 is 21

50%

500

What percent of 335 is 21

6.27%

Inequalities

100

Solve 5x - 3 > 12

x > 3

200

-6x -9 <= 3 

x  >= -2 

300

2x + 5 < 9

  x < 2

400

x + 4 < 9

 x < 5

500

2x + 3 > 7

2x > 4