Pre-Algebra Unit 4 Test Review

Addition of Integers

100

Find the sum 

(+4)+(+20)

24

200

-12 + 5

-7

300

-16 + (10 - 5)

-11

400

-5 + (3 - 0.5)

-2.5

500

-8+(-4)+12

0

Mixed Bag

100

Adding Integers:   A football team loses 5 yards on one play and then loses 8 yards on the next play.  How many yards did they lose on the two plays?

They lost 13 yards

-13

200

Adding Integers: You park in a garage 3 floors below ground level.  Then you get in the elevator and go up 12 floors.  What floor do you get off the elevator?

9th floor

300

5²

25

400

frac{-9 - -12}{8}

3/8

500

Solve: 

x + -45.1 = 50

x = 95.1

Subtraction of Integers

100

3 - (-9) =

12

200

-20 - ( 15) =

-35

300

5 - (-14) =

19

400

-14 - (14) =

-28

500

-32 - (-14) =

-18

Inequalities

100

x + 3 >= 10.4

x >= 7.4

200

Write an inequality for the situation.

Emily can spend up to $100 on present this year.

s <= 100

300

Would you graph this symbol with an open or closed circle?

<=

closed 

400

x – 5.4 ≥ 4.9

x >= 10.3

500

Name any value for x.

x-4.2<=5 3/5

x <= 9.8

Absolute Value

100

What is the absolute value of |-48|?

48

200

What is the absolute value of |92|?

92

300

What is the absolute value of -|12|

-12

400

|x-y| when x=5 and y=7

2

500

|-2-10|

12