Real Numbers

any number that can be

either rational or irrational

but must be able to be put into the calculator.

EX:  1/3 and square root of 8

Rational Numbers

a number that

can be written as

a fraction a/b

where a and b are integers

Ex:  4/5 and 6/1

Irrational Numbers

a number that

can not be written

as a fraction

Ex:  square of 3 and pi

Integers

a number that

can be positive, negative or 0,

but must reduce to a whole number.

Ex:  10/2, 0/9, -4/2

Whole Numbers

a number that is

never negative, but is 0 and positive,

also must reduce CLEAN.

Ex:  0/4, 15/3, square root 36

Natural Numbers

a number that

is called a counting number,

never negative and no 0.

Ex:  1,2,3, etc

True or False

All Integers are Rational Numbers

TRUE

True or False

All Natural Numbers are Irrational Numbers

FALSE

Which number is both

a irrational number and real?

                     a)  3/2

                     b) 12/4

                     c) square root 5

C

because irrational

which means cannot

be made into a fraction

Which number is both

a whole number and an integer?

                          a)  9

                          b)  10/3

                          c)  -9

A

whole number are not negative,

both integer and whole number

must reduce clean too.

Which number is

a natural number and real?

                          a)  -15/4

                          b)  5

                          c)  0

B

a natural number is a counting number 

and can be neither 0 or negative

and reduces clean.

Real numbers are all numbers!