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Vocabulary

100

A symbol in math (usually a letter), that represents the value of an unknown quantity. This value can change.

What is a variable.

200

Terms that have the same variables and the same exponent. They can be simplified by adding or subtracting.

Like terms

300

What operation does quotient indicate?

Division

400

What classification of number is the square root of 99?

Irrational Number

500

What is the difference between an equation and an expression?

Expressions don't have an equal sign, but equations do. 

Expressions can be simplified, and equations can be solved.

Operations with Real Numbers

100

5+8

13

200

6-10

-4

300

(-5)(-8)

40

400

18/(-3)

-6

500

-6-(-11)

5

Simplify

100

2x+6x

8x

200

9x-3x+x

7x

300

4(3+7h)

12+28h

400

-2(y+4)-3y

-5y-8

500

8y+3y²+5(2y-11)

3y²+18y-55

More Simplifying

100

2r+5r-11r

-4r

200

3(-v+3)

-3v+9

300

(-6)²

36

400

square root of 81

9

500

(-j+8)(-7)

7j-56

Equations

100

Determine whether x=4 is a solution:

5x=-20

What is no!

200

Determine whether t=-2 is a solution:

-6(t)-t=14

What is yes!

300

Determine whether (8,1) is a solution for:

3x+5=y

What is no!

400

Use a table or mental math to find the value of x:

4x=-48

x=-12

500

Determine whether (4,-2) is a solution for:

x²+y=10+x

What is yes!