Real Numbers

Classifying Real Numbers

100

Which of these numbers is a NATURAL number? a) 2/3 b) -3 c) 7 d) 0

7 is a natural/counting number

200

Which of the following is a whole number? a) 0.8 b) 1/2 c) -5 d) 12/3

12/3 = 4 ; 4 is a whole number

300

Which of the following is an integer? a) -4/9 b) 12 c) 0.67 d) 1/4

12 is an integer. Integers are whole numbers or their opposites.

400

Why is 0 an integer?

integers include whole numbers 

500

Is 81 a Whole number? 

yes

Comparing and Ordering Real Numbers

100

Compare using <, >, or =. -4 ____ 7

-4 < 7 (Negative numbers are always smaller than positive numbers.)

200

Compare using <, >, or =. 76 _____ 23

76 > 23

300

Compare using <, >, or =. -5 _____ -80

-5 > -80

400

Order the following numbers from least to greatest: 2, 12, -8, 0, -1

-8, -1, 0, 2, 12

500

Order these numbers from greatest to least: 3, -4, 2, 1 -2

3, 2, 1, -2, -4

Integers

100

Find the number that is only and integer 18.432..., 0, 32, -12

-12

200

Which is not an integer  7, 0, -12, 1/2

1/2

300

Which is and integer  6, 2.3431..., -1/4

6

400

Is 0 and integer? yes or no

yes

500

-74, 0, 500, 1/7 which is not an integer

1/7

Absolute Value

100

Find /-10/.

10

200

Find /175/.

175

300

Find -/8/.

-8

400

find /-10/ 

10

500

/4/ - /-2/

4 - 2 = 2

coordinate grid

100

is the x-axis go (up and down) or (left and right)

left and right

200

in the ordered pair (2 , 4) which is the y coordinate.

4

300

in which quadrant is the ordered pair (-8, 9)

Quadrant 2

400

What is the distance between (4 ,9) (4 , 2)

7

500

What Quadrant is in: (-4, -7)

Quadrant III