Unit 6 Review

Vocabulary

100

What is a variable?

A letter that represents and unknown number

200

What is a coefficient? 

The number multiplied by the variable 

300

What is the difference between a dependent variable and an independent variable?

The dependent variable depends on something else, whereas the independent variable does not

400

What is the bottom number in a fraction called?

Denominator

500

17y³¹

^{Name the following:}

^Variable:

^Coefficient:

^Exponent 

Variable: y

Coefficient: 17

Exponent: 31

Exponents

100

Solve: 

3²

9

200

Rewrite 4⁶ 

4 x 4 x 4 x 4 x 4 x 4

300

Rewrite 5 x 5 x 5 x 5

5⁴

400

Solve:

8⁴

4,096

500

What does an exponent "tell" the base number?

How many times to multiply the base number 

Math Stuff

100

If we know a value for our variable, we can _______ the value.

Substitute it 

200

Solve:

12345678⁰

1

300

Evaluate the expression:

3 * 4²

48

400

2/5 of the students in the building are in the 6th grade. If there are a total of 150 students in the school, how many of them are in the 6th grade?

60

500

2/5 of the students in the building are in 6th grade. If there are 80 6th graders, how many TOTAL students are in the building?

200

Distributing

100

Solve:

2(1+2)

6

200

Solve:

2(c-4)

2c-8

300

Rewrite 2x + 3x using the distributive property. 

x(2+3)

400

Rewrite 12(x + 2y)

12x + 24y

500

Rewrite 4yz - 16xy

4y(z-4x)

More Math Stuff

100

What is the solution for x - 4= 10

14

200

Solve:

144x=12

x=12

300

Find the solution.

3a-4=8

a=4

400

What is the order of operations?

PEMDAS

Parenthesis, Exponents, Multiply, Divide, Add, Subtract 

500

Find the solution.

70w + 10=290

w=4