Pre-Algebra Review

Fractions & Decimals

100

Find the Greatest Common Divisor (or GCF) of 24 and 18 

6

200

 (4 2/5)-(4 3/10)

1/10

300

(-5 2/3)÷(-3 1/6)

34/19

400

-9/7x +9/2 = -5/2

49/9

500

4.3x-0.7(x + 2.1) = 8.61

2.8

Expressions

100

Evaluate

(3^2  ∙ 8)/(23 - 3∙7)

1/2

200

–8 – | –11 – (–6)2 |

-9

300

Evaluate 

    (3^2 (4 + 8 - 10))/(〖(5 - 3)〗^2 ∙ 3)

18/12 = 3/2

400

5√16-3√25    

5

500

     (-3/2   -   5/8)/(    3/4   -   1/2)

-17/2

Ratio & Proportion

100

(2x+10)/6 = 14/3

9

200

3.4 tons to ounces

119931 ounces

300

Change 6.2 Kiloliters to centiliters

620000 cL

400

42 kilometers per hour to miles per hour. Round to the nearest mile per hour.

26 mi/hr

500

352 ounces to kilograms

1kg = 2.2 lb

10 kilograms

Percent

100

0.0037% to a decimal

0.000037

200

What number is 22.4% of 125?

28

300

14 2/7 % to a fraction

1/7

400

59 1/2 % of what number is 2.38?

4

500

Balance = 5,720

Time = 4 year

Principal = 4,400

Interest rate? (as a percent)

7.5%

Equations

100

-6x + 8 = -2x

2

200

-3/2x=-7/5

14/15

300

1/4x-4/3 = -2/3

8/3

400

6.24x - 5.2 = 5.2x

5

500

-2/3 + 0.9 = x

7/30