Click on each of the
eleven general
subject areas shown

below. Each subject
illustrates one way
real numbers are
used in everyday
life: as integers,
decimals, fractions,
percents, different
units of
measurement, time
periods, etc.

Real
numbers
consist of the
following types of
numbers:
Rational
Numbers
(Fractions,
decimals, natural
numbers, whole
numbers, and
integers), and
Irrational
Numbers
(numbers which
cannot be
represented as a
fraction).

The first
section, which is
titled "Overview"
(below), uses a
number line to
provide a visual
graphic which can be
used to show all
real numbers. Every
real number
(rational and
irrational) can be
placed on the same
number line.

A number
line is a
picture of how
a real
number
represents the
concept of
quantity. A
number line is
essentially a ruler
(a physical, one
dimensional
measurement scale).
Number lines show
how every quantity
(value) can be
represented as a
distinct point on
the ruler.

Subsequent
sections show
how this idea can be
applied to various
types of
computations and
comparisons.

It is also worth
noting that the
variables used in
algebra do stand for
numbers. Algebraic
variables behave in
exactly the same way
numbers behave.

*Real
Numbers -*
overview
*- click
description*

Return
To

"Top of
Page"

click
here

How to Compare
Numbers Using a

Number
Line
- click
description

Questions
about
Numbers
. .
.

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