Algebra

Vocabulary

100

the name for the unknown number that is represented with a letter

variable

200

the name for a number whose value will always remain the same (no variable)

constant

300

the number in front of a variable in a variable term

EX: 5x (what is the 5 called?)

coefficient

400

Numbers, symbols and operations (such as + and ×) grouped together that represent the value of something

expression

500

A mathematical expression that shows the value of the expression using an equal sign

equation

Variable Operations

100

2x + 5x = 

7x

200

2x - 5x

-3x

300

2x·5x

10x²

400

x³·x⁵

x⁸

500

(x³)⁴

x¹²

Equations & Expressions

100

Solve for x.

3x + 9 = 30

x = 7

200

True or False:

4(2x-3) = 8x - 12

True

300

Solve for x.

1/2 (x) - 5 = 6

x = 22

400

3x + 10 = 2x

x = -10

500

True or False: 2(3x+4) = 6x+6

False

Circles

100

1/4 as a percentage

25%

200

1/3 as a percentage

Approximately 33%

300

1/10 as a percentage

10%

400

6/10 as a percentage

60%

500

A circle equals...

100%

Central Angles

100

Central angle for 1/4 of a circle is...

90 degrees

200

Central angle for 1/2 of a circle is...

180 degrees

300

A full rotations of a circle is...

360 degrees

400

NO QUESTION

Algebra

500

NO Question

Algebra