The Real Numbers
Classify Numbers
Equations with roots
Roots
100

Counting numbers are also called...

Natural Numbers

100

RATIONAL OR IRRATIONAL?  Explain your reasoning.

3.216

RATIONAL because it terminates.

100

x^2=121

What is 11, -11?

100

sqrt36=


6

200

Real Numbers are divided into 2 main sets:

Rational and Irrational Numbers

200

What set(s) of numbers does  -sqrt81  fall into?

Natural, whole, integers, rational

RATIONAL, INTEGER

200

(x + 2)^2=16 

2

200

+-sqrt25=

5, -5 or 

+-5

300

Rational Numbers are rational because they can be expressed as __________

fractions and decimals 

300

pi

IRRATIONAL

300

(x + 6)^2=24 

x = -6 +- 2 sq root 6

300

root3(-8)=

-2

400

Irrational Numbers are so because they ... 

never end and never repeat 

400

RATIONAL OR IRRATIONAL?  Explain your reasoning.

62

Rational because 36 is a whole number 

400

 sqrt36  +  2sqrt25

16

400

Estimate sqrt12 to the closest integer.

3

500

Give an example of an Integer 

 ... 

500

Is sqrt2/2  rational or irrational?

IRRATIONAL

500

 If f(x) = 10 - sqrt x + 4 then f (12) = 

6

500

Round to nearest thousandths 

 sqrt4587

67.727