Unit 1 Review

Decimals

100

24.314+31.568

55.882

200

741.216-713.53

27.686

300

34.61*11.4

394.554

400

348.4/26

13.4

500

328.2/12

27.35

Coordinate Planes

100

What are the points called that we put on the coordinate planes? 

Ordered Pairs

200

What do we call the point (0,0)? 

The Origin

300

What is the X coordinate in the following ordered pair,
(-7,12)

-7

400

Describe which direction and how man units away the ordered pair is from the origin,
(5,-3)

Right 5

Down 3

500

The point (-2,3) is reflected over the y-axis. Where is it now?
Give the new coordinates as well as a description of the direction and distance away from the origin. 

(2,3) 

right 2

up 3

Integers

100

What are the integers? 

The whole numbers including their opposites, and zero. 

200

What is the opposite of -12

12

300

Order the numbers using inequality signs
-6 and -8

-6 > -8

OR

-8 < -6

400

Find the opposite of the opposite of the opposite of 32

-32

500

Which is bigger (use the inequality signs)

The opposite of 20 or the opposite of 22?

-22 < -20 

OR

-20 > -22

GCF and LCM

100

Find the GCF of 32 and 24

8

200

Find the LCM of 6 and 21

42

300

Find the GCF of 45, 36, 18

9

400

Find the LCM of 6, 8, 15

120

500

Find the GCF of 100, 225, 550, and 775

25

Fractions

100

1/5+3/4

9/20

200

13/15-2/5

7/15

300

3/4*6/15

3/10

400

8/42 divided by 16/21

1/42

500

25/36 divided by 15/48

20/9