Unit 1 Test Review

1.1 and 1.2

100

What is a variable?

A letter that represents an unknown number

200

What comes first in the order of operations?

Groupings

300

Solve the following

3+8*2-7

12

400

Solve the following

8/2 +(4+1) * 0

4

500

Solve the following

1+(3+(8*(7*0)))+8

12

1.3

100

What are the two steps of an evaluation problem?

1. replace the number with the letter

2. simplify/solve the expression

200

When I replace a number in for a letter, what should be around the number when I replace it?

parentheses

300

Evaluate the following when x=2

x*8-1

15

400

Evaluate the following when y=4

y*(y+3)-2

26

500

Evaluate the following when a=5

a+a*a-a+a/a

26

1.4 and 1.7

100

How many quadrants are in the coordinate plane?

four

200

What does the "absolute value" of a number mean?

How far away that number is from zero

300

What is the absolute value of -31?

31

400

How would you describe where to graph the following point? (5,-3)

go 5 to the right from the origin, then down 3

500

Order the numbers from least to greatest

-37, -46, 52, -76, 6, -90, -17, 2, 100, 87

-90, -76, -46, -37, -17, 2, 6, 52, 87, 100

1.5

100

A negative plus a negative is a... 

negative

200

What is the first step in solving this problem?

6-(-4)

cancel out the negatives and make it a positive.

rewrite it as 6+4

300

What is -15+(-20)?

-35

400

Describe and solve how to do the following problem on a number line

8+(-11)

start at 8 and then go 11 steps to the left and land on -3

500

Solve

-8+(-2)-(-7)-8+2

-9

1.6

100

A positive times a positive is a...

positive

200

A negative times a positive is a..

negative

300

(-5)(3)

-15

400

Solve

(-1)(-4)(-2)(0)

0

500

(9)(-5)/(-5) 

9