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Vocabulary

100

A symbol that stands for a number

What is a variable?

200

The opposite operation

What is an inverse operation?

300

n x 2 = 6

What is an expression?

400

A number that has more than one factor pair like 12, 15, or 20.

What is a Composite number?

500

A number that only has one factor pair like 7, 13, or 19.

What is a prime number?

Expressions

100

A number times 4

4n

200

A number times 2 plus 5

2n+5

300

Three times a number minus 8

3n-8

400

A number divided by 6 plus 10

(n / 6) + 10

500

a number divided by 8 times 5

(n / 8) X 5

Variable Equations

100

x + 4 = 17

x = 13

200

n-18=54

72

300

n + 24 = 66

42

400

n+204=458

254

500

n + 252 = 3,000

2,748

Cover Up Equations

100

4N + 6 = 42

n=9

200

2N - 8 = 48

N=20

300

(n / 3) + 6 = 36

n=90

400

5N / 4 = 10

n=8

500

6= 9N / 3

N=2