Chapter 4 Pre Algebra Test Review

GCF

100

Find the GCF:

18 and 24

6

200

Find the GCF:

60 and 30

30

300

Find the GCF:

12xy and 15x²y³

3xy

400

Find the GCF:

27ab² and 48bc  

3b

500

Find the GCF: 

36x²y and 16xy

4xy

Prime Factorization

100

Find the prime factorization of:

48

2 xx 2 xx 2 xx 2 xx 3

or 2⁴ x 3

200

Find the prime factorization of:

72

2 xx 2 xx 2 xx 3 xx 3 

300

Find the prime factorization of:

24x²y³

2 xx 2 xx 2 xx 3 xx x xx x xx y xx y xx y

400

Find the prime factorization of:

84ab²

2 xx 2 xx 3 xx 7 xx a xx b xx b

500

Find the prime factorization:

75mn²

3 x 5 x 5 x m x n x n

LCM

100

Find the LCM:

6 and 10

30

200

Find the LCM:

9 and 12

36

300

Find the LCM:

22 and 38

418

400

Find the LCM:

15 and 21

105

500

Find the LCM:

30x² and 45xy²

90x²y2

Exponents

100

a^2 xx a^4

a⁶

200

4x^2 xx 3x

12x³

300

(3x^5)/(12x^2)

(x^3)/(4)

400

25b⁰

25

500

a^-2 xx a^-5

1/(a^7)

Computational

100

Answer in simplest form:

2/3 + 2/12

5/6

200

Answer in simplest form:

(4x)/15 + (3x)/5

(13x)/15

300

Simplest form:

-1/2 + 2/7

-3/14

400

Simplest form:

x + 2/4 = 6/8

x = 

1/4

500

Simplest form:

x - 5/12 = -3/12 

 

x = 1/6