Pre-Algebra 8th grade

Equations

100

Solve for x: x + 15 = 85

70

200

Solve for x: x - 15 = -15

110

300

Solve for x: x - 23 = -65

-42

400

Solve for x: -3x - 26 = 160

62

500

Solve for x: 5x - 14 = 3x + 20

17

Adding and Subtracting Fractions

100

1/3 - 1/12 

3/12 or 1/4 

200

1 1/2 + 3 2/3

5 1/6

300

10 1/3 - 6 5/9

3 7/9

400

5 3/4 - 3 1/2 

2 1/4 

500

7 1/4 - 1 3/8

5 7/8 

Integers and Order of Operation

100

solve -5 cubed

-125

200

Solve: -3 raised to the fourth power

81

300

Solve: -5 + ( 2 x 7)² x 1/2=

93

400

Solve: (-5)²  + ( 9+4²) 

50

500

Solve: 7²+ ( 2-10) - 4 x 5 

21

Triangles

100

Find the missing hypotenuse on a triangle with side lengths of 3 and 4 

5

200

If a triangle has the side lengths 6, 8 and 13 is it a right triangle? 

No

300

A triangles hypotenuse is 10 and a side of 6 what is the other side length? 

8

400

What is the equations for the Pythagorean Theorem? 

a²  + b²  = c²

500

If my triangle has a base length of 9 and a hypotenuse of 15 what is the other side length? 

12 

Combining Like Terms

100

6² + 5 - 16x + 2³ + 20x 

49 + 4x 

200

-y - 5 + y + 2(2y - y) - 3 

2y - 8

300

3x + 4y - 13x + 20y - 2y

-10x + 22y 

400

3² + 4x + (2 x 10) - 2x + 10x 

29 + 12x

500

2x + (3² x 5) - 35 x 1/5 

2x + 38