Topic 3 Math Review

3-1 Exponents

100

Write this as an exponent:

9 x 9 x 9 x 9 

9⁴

200

Solve: 

(1/5)⁴

1/1625

300

Solve: 

6.2 x 10³

6,200

3-2 GCF and LCM

100

How do you find the Greatest Common Factor?

How do you find the Least Common Multiple?

1. Create a factor tree of both numbers. Then multiply the PRIME numbers they have in common. 

2. List out the multiples of each number. Then circle the least number the have in common.

200

Find the GCF of 27 and 30

3

300

Find the LCM of 5 and 8

40

3-3 Numerical Expressions

100

List out the order of operations

Parenthesis 

Exponents

Multiplication

Division

Addition

Subtraction

200

4.3 + (8.4 - 5.1)

7.6

300

[2³ x (152 / 8)] - 52

100

3-4 Write Algebraic Expressions

100

What is the variable in this equation? 

4(x + 8)

x

200

Write an algebraic expression for the following:

22 divided by a number s

22 / s

300

Write an algebraic expression for the following:

0.5 less than the product of 7 and a number x

7x - 0.5

3-5 Evaluate Algebraic Expressions

100

x = 3

9x

27

200

x = 3, y = 4

3y + 6 / 2x

13

300

w = 2, x = 5, y = 8, z = 3

x² + 2y / 2w + 3z

38