Pre-Algebra Chapter 5 Review

LCM

100

Find the LCM of 10 and 36

180

200

Find the LCM of 5, 6, and 7

210

300

Find the LCM of 12x and 40y

120xy

400

Find the LCM of 6a³ and 8a

24a³

500

Find the LCM of 2x³, 5 y², and 15xy²

30x³y²

Fractions and Decimals

100

Write the mixed number as a decimal: 1 and 9/10

1.45

200

Write the decimal as a fraction in simplest form: .08

2/25

300

Write the decimal as a mixed number in simplest form: 7.15

7 and 3/20

400

Write the decimal as a fraction in simplest form: 0.5 repeating

5/9

500

Write the repeating decimal as a fraction in simplest form: 0.126 (all three digits repeating)

14/111

Adding and Subtracting fractions and mixed numbers

100

12/20-1/4

7/20

200

-3/10-5/100

-7/20

300

3 and 3/4 + 2 and 1/4

6

400

1 and 7/8 - 2 and 3/4

-7/8

500

3/n + (-3/10)

(30-3n)/10n

Solve Equations

100

Solve and check.

x - 1/8 = 5/8

3/4

200

Solve and check.

y - 5/8 = 7/12

1 and 5/24

300

Solve and check.

y + 4 and 7/8 = 2

-2 and 7/8

400

Solve and check.

-5/7x = 9/10

-1 and 13/50

500

Solve and check.

1 and 1/2n = 3 and 4/9

2 and 8/27

Powers of Products and Quotients

100

Simplify.

(2xy) to the 2nd power

4 x squared y squared

200

Simplify.

(1/3x²)⁴

1/81x⁸

300

Simplify.

(-m/b³)⁶

m⁶/b¹⁸

400

Simplify.

(-9c²)³

-729c⁶

500

Simplify.

(-3x/8y)²

9x²/64y²