Expressions & Equations

Vocabulary

100

A letter than represents an unknown value

What is a variable?

200

Answer to a division problem

What is a quotient?

300

A number that divides evenly into another number

What is a factor?

400

Values in an expression (can be a constant or a variable) separated by a + or -

What is a factor?

500

A value in front of a variable that represents multiplication

What is a coefficient?

Exponents

100

3 x 3 x 3 x 3

4⁴

200

Value of 6²

What is 36?

300

Value of 5 cubed

What is 125?

400

Value of 3^{3 -} 2²

What is 23?

500

The product of 5² and 7²

What is 74?

Equivalent Expressions

100

Combine like terms

4x + 3y + 9x + 2y

What is 13x + 5y

200

Use the distributive property

6 (2x + 9y)

What is 12x + 54y?

300

Combine like terms

3x² + 9y + 2x² + 5x - y

What is 5x² + 8y + 5x?

400

Use distributive property 

3x(12 - 4)

36x -12x

500

Use the distributive property

15x + 40

What is 5(x + 8)?

Solving Equations

100

12 + x = 19.5

What is x=7.5?

200

2x = 18

What is x=9?

300

2x + 13 = 25

What is x= 6?

400

x² + 42 = 58

What is x=4?

500

5x - 85 = 15

What is x=20?

Evaluating Expressions

100

3x + 21

x=5

What is 36?

200

y² + 6.5

y= 8

What is 70.5?

300

8x + 2y

x= 4     y=6

What is 44?

400

x³ + 4y - 2

x=2 y=10

What is 46?

500

9.1x - 1.3

x= 0.3

What is 1.43?