Number Systems Review

Number Line Placement

100

Where are positive numbers located on the number line?

The right side of zero

200

The more negative a number gets, the (bigger, smaller) the number is.

The more negative a number gets, the smaller the number is.

300

A number line shows relationships between ________?

Numbers, Integers, Fractions..

400

Which number is bigger: -7 or -10? Why?

-7 because it is closer to 0 than -10

500

which number is smaller: -13 or -13.5?

-13.5 since it is to the left of -13 (smaller numbers to the left)

Absolute Value

100

|-12| - 11 = 

1

200

19 + |-2| =

21

300

|-30| - 28 = 

-2

400

|-15| + |-18| = 

33

500

|-8| + 27 =

35

Add/Subtract Integers

100

(-7) + 2 =

-5

200

9 - (-12) = 

21

300

(-13) + (-10) = 

-23

400

(-32) + 21 = 

-11

500

(-24) - (-37) =

13

Multiply/Divide Integers

100

-5 x -5 = 

25

200

-10 x 3 =

-30

300

80 ÷ -5 =

-16

400

-42 ÷ -7 =

6

500

9 x (-3) =

-27

Simplifying Fractions

100

Simplify: 4/10

2/5

200

Simplify: 15/65

3/13

300

Simplify: 12/48

1/4

400

What is the GCF of 36 and 45? 

9

500

What is the LCM of 8 and 12?

24