8th Grade Review

Decimals and Fractions

100

Solve: -8.65 - 4.3

-12.95

200

Solve: -7.2 x 11.3

-81.36

300

Solve and express in simplest form:

5(3/5) x (6/7)

4(4/5)

400

Solve: 28.8 / 0.04

720

500

Solve and expression simplest form:

3(2/5) / (6/13)

7(11/30)

Exponents

100

Simplify and express using an exponent:

(2²)³

2⁶

200

Express the fraction in simplest form:

(3/5)²

9/25

300

Solve:

2^-2 x 2⁴

2² = 4

400

Solve:

3^-4

1/81

500

Solve:

(2 x 10³) x (4 x 10⁴)

8 x 10⁷

Equations and Lines

100

Solve:

2³ + 4 x (3-1)

16

200

What is the slope and y-intercept of this line:

y = (-1/2)x - 2 

Slope : -1/2

y-intercept: -2

300

Rewrite the equation from slope intercept form to standard form: 

y = 5x-8

5x-y = 8

400

Write an equation in slope intercept form for a line that passes through (11,10) and (12,13)

y= 3x - 23

500

Solve the system of equations:

2x+3y = 15 , x-3y = 3 

x = 6 and y = 1

All Operations

100

Solve: 84/-6

-14

200

Solve: 237/-4

-59.25

300

Solve: 118 x 38

4,484

400

Solve: 33 - (-19)

52

500

Solve -26 - (-17)

-9

Miscellaneous Math

100

Solve |-9|

9

200

It costs $7 to enter an arcade. Each game at the arcade costs $3. If you have $30 how many games can you play and how much money do you have left over?

7 games and $2 left over

300

What is 30% of 20?

6

400

On Saturday, David ran 4 miles. He ran 3 times as many miles on Sunday as he did on Saturday. On Monday, he ran 2 more miles than he did on Saturday. How many total miles did David run?

22 miles

500

Order from least to greatest:

-2(3/4), -2.8, 3, 2(2/3)

-2.8, -2(3/4), 2(2/3), 3