8th Grade Review

Expressions

100

Evaluate:  (8 - 5)² + (7 - 25/5)

What is 11

200

Evaluate: y² - 12x + 11 given x = 1/3 and y = -9

What is 88

300

Simplify: 5 - 3(4x + 2) + x

What is -11x - 1

400

What is the constant of the simplified version of: 

(6x -1) - (-2x + 1)

What is -2

Rewriting Fractions

100

What is 3/8 as a decimal?

What is 0.375

200

What is -4 1/5 as a decimal?

What is -4.2

300

What is 7/9 as a decimal?

What is 0.7777777...

400

What is 4/12 as a decimal?

0.3333....

Square Roots

100

What is the square root of 144?

What is 12

200

What is the square root of 9/4?

What is 3/2

300

What is the square root of 54/6?

What is 9

400

What is the square root of 1620? 

*Hint - Factor Tree

What is 18 sqrt 5

Exponents

100

Simplify: ((4⁵)²)³

What is 4³⁰

200

Simplify: x⁴y³xy⁷

What is x⁵y¹⁰

300

Simplify: (5xy^-7)²

What is (25x²)/y¹⁴

400

Simplify: 

(12x⁵yz^-3x)/(9x^-2y⁰z)              

What is (4x⁸y)/(3z⁴)

Scientific Notation

100

How many significant figures should there be in your final answer given: (1.1 x 10³)(2.5 x 10⁹)    

What is 2

200

Calculate and make sure to use the correct number of significant figures: 0.008 + 78.02

What is 80

300

Calculate and make sure to use the correct number of significant figures: 25 - 10.21

What is 15

400

(1.1 x 10³)(2.5 x 10⁹)    

What is 2.8 x 10¹²