Pre Algebra Review

Exponents

100

When you see the following expression, what is the little number on top of it called?

2⁴

What is exponent/power?

200

How can you rewrite 9² in expanded form?

What is 9x9?

300

How can you rewrite the following in exponential form?

7 x 7 x 7 x 7 x 7 

What is 7^4?

400

What is the value of:

8⁴

https://www.khanacademy.org/math/pre-algebra/pre-algebra-exponents-radicals/pre-algebra-exponents/v/introduction-to-exponents

What is 4,096?

500

What is the value of:

2³ + 3² - 4²

https://www.khanacademy.org/math/pre-algebra/pre-algebra-exponents-radicals/pre-algebra-exponents/v/introduction-to-exponents

What is 1?

Order of Operations

100

Simplify the following expression:

https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-order-of-operations/v/introduction-to-order-of-operations 

What is 62?

200

Simplify the following expression:

https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-order-of-operations/v/introduction-to-order-of-operations

What is 5?

300

3 + 4² * (3 + 2)

What is 95?

400

 

What is 45?

500

What is 30?

One Step Equations

100

x - 5x = 64

What is x = -16

200

-0.3m = -12

What is 40?

300

2.5x = -60

What is -24

400

x - (-3) = 5

What is 2

500

x - 0.9x = 7

What is 70?

Two Step Equations

100

4x -2 = 10

x = 3

200

5x - 17 = 28

x = 9

300

17 - 3x = 3 x 5

x = 2 / 3

400

3(x + 6) = 20

x = 2/3

500

12x +3 = 2x - 5

x = -0.8

x = - 4/5