Equations and Expessions

Variable Vocabulary

100

In the expression 3x + 5,what is the letter (unknown) called?

variable 

200

In the term 7y, the number 7, which is being multiplied by the variable, is called what?

Coefficient

300

These are the parts of an algebraic expression separated by plus or minus signs.(Starts with a t...)

Terms

400

This is a number that stands alone in an expression and does not change (Starts with a "c"...)

What is a constant

500

Unlike an equation, an expression does not have this

equal sign

The Power of 2 (Exponents)

100

This is the value of 5².

25

200

In the expression 4³, the number 4 is called what?

The base

300

What is 5³ written in expanded form?

5 x 5 x 5

400

What is 2 x 2 x 2 x 2 written in exponential form? 

2⁴

500

To evaluate 2⁴, you would multiply 2 by itself this many times. 

four times

Translating Math

100

Write the expression for "a number n increased by 10."

n + 10

200

Write the expression for "the product of 6 and x"

6x

300

This word tells you to subtract, like "the ____ between 10 and 4 is 6." It means the answer to a subtraction problem.

difference

400

Write the expression for "the quotient of y and 3." 

y / 3 

500

Write the expression for "5 less than twice a number k."

2k - 5

Solving for X

100

Solve for: x + 10 = 15

5

200

Solve for x: x - 4 = 19

23

300

Solve for x: 3x = 21 

7

400

Solve 4 + x = 20

16

500

Solve 6 + 2 + x = 16

8

Inequality Island

100

This symbol "<" means...

Less than

200

Does the number 10 make the inequality "x less an or equal to 10" true?

yes 

300

To represent "you must be greater than 48 inches tall," what is the inequality?

x > 48

400

What is the greatest whole number solution in: 10 > x

9

500

What can be the solution to x in "5x > 0"

Anything greater than 0