Math Essentials Review

Equations

100

x + 4 = 15

x = 9

200

x - 7 = 23

x = 30

300

6x = 120

x = 20

400

x/9 = 4

x = 36

500

x + 3x = 16

x = 4

F/D/P

100

Convert 1/10 to a decimal.

0.1

200

Convert 3/4 to a percent.

75%

300

Convert 72% to a decimal.

0.72

400

Convert 0.4 to a fraction in simplest form.

4/10 --> 2/5

500

Convert 25% to a fraction in simplest form

25/100 --> 1/4

Integers

100

-8 + -6

-14

200

-9 + 7

-2

300

-7(-4)

28

400

7 - 12

-5

500

-18/6

-3

PEMDAS

100

3 x (4 - 1)

9

200

3 x 7 - 2 x 3

15

300

6 + 5² - 18

13

400

7 x (6-3)²

63

500

4 x (10.1 + 1.9) / 2

24

Random

100

5 x 18

90

200

Use the distributive property to simplify the expression.

2(x-8)

2x - 16

300

Simplify by combining like terms.

8x + 18 - x - 9

7x + 9

400

3/4 x 5/6

5/8

500

8/9 / 4/5

1 1/9 or 10/9