Equations

Multiply and Divide

100

3 x 3

9

200

-3 x -3

9

300

30/-6

-5

400

-42/7

-6

500

-12 x -8

96

Which x fits?

100

x + 5 = 10

A. x = 5     B. x = -5

C. x = 2     D. x = 15

A. x = 5

200

x - 2 = -9

A. x = -11     B. x = 11

C. x = -7       D. x = 7

C. x = -7

300

If x = 3, which of the following equations is true?

A. 5x = 12     B. x - 5 = 2

C. x/2 = 6     D. x - 4 = -1

D. x - 4 = -1

400

If x = -1, which of the following equations is true?

A. 5x + 1 = 6       B. 3x - 4 = -7

C. -2x + 1 = 1      D. -3x - 4 = 7 

B. 3x - 4 = -7

500

Free Question of the Day!

Automatic 500 Points!

1-Step Equations

100

5 + x = 12

x = 7

200

x - 3 = 15

x = 18

300

7x = 49

x = 7

400

x/5 = 4

x = 20

500

-9x = 81

x = -9

2-Step Equations

100

2x + 2 = 8

x = 3

200

5x - 1 = 14

x = 3

300

-2x + 3 = -9

x = 6

400

-5x - 7 = -12

x = 1

500

4x + 8 = 8

x = 0

Random Math

100

Which operation is the inverse of multiplication?

Division

200

Write a true 1-step equation where x = 2

Answers will vary

300

Write a true 2-step equation where x = 4.

Answers will vary

400

Find the error in the following student's work:

3x - 4 = 11

     - 4    - 4

3x      = 7

  x = 7/3

3x - 4 = 11

Need to add 4 to both sides, not subtract

500

When solving a 2-step equation, you should:

A. Add or subtract, then multiply or divide

B. Multiply or divide, then add or subtract

C. Subtract or multiply, then add or divide

A. Add or subtract, then multiply or divide