PPT on Number System Class 9th Subject Maths
This Power point presentation made by Bhavesh Naveen for class 9th for more PPT on any subject or chapter just comment down...
PPT into PDF file on download section
for PDF file comment down
PPT into PDF file on download section
for PDF file comment down
or
if you need only material just scroll down
Maths PPT direct download link
DOWNLOAD HERE
RAW Material
ACKNOWLEDGEMENT
We would like to thank Ranveer Singh
sir for giving us an opportunity to express ourselves via mathematical
projects. We are also thankful to our principal Mr. Nem
Singh sir for letting us do such a wonderful project. Also, we thank our
friends for their ideas and co-operation they provide to us. We are grateful to
all of them.
INTRODUCTION
A number system defines a set of values used to represent a
quantity. We talk about the number of people attending school, number of
modules taken per student etc.
Quantifying items and values in relations to each other is helpful
for us to make sense of our environment.
The study of numbers is not only related to computers. We apply
numbers everyday, and knowing how numbers work, will give us an insight of how
computers manipulate and store numbers.
Brief
Introduction About Numbers
A number is a mathematical object
used in counting and measuring. Numerical are often used for labels, for
ordering serial numbers, and for codes like ISBNs. In mathematics, the
definition of number has been extended over the years to include such numbers
as, zero negative numbers, rational number, irrational numbers and complex
numbers.
TYPE OF
NUMBERS
RATIONAL
NUMBERS-A rational
number is any number that can be expressed in the form of quotient and fraction
P/Q where Q is not equal to zero.
NATURAL
NUMBERS-The counting
numbers {1,2,3…} are called natural numbers
Number line-A line on
which numbers are marked at intervals, used to illustrate simple numerical
operations.
INTEGERS-Positive and
negative counting numbers
REAL
NMBERS-A real number
is a value of a continuous quantity that can represent a distance along a line.
Fractions
This
is a way of depicting a rational number. Fractions are written as two numbers,
the numerator and the denominator, with a dividing bar between them.
In
the fraction m/n ‘m’ represents equal parts, where ‘n’ equal parts of that size
make up one whole.
If
the absolute value of the fraction is greater than 1. Fractions
can be greater than, less than, or equal to 1and can also be positive,
negative, or zero.
THE DECIMAL NUMBER SYSTEM
The
number system we use on day-to-day basis in the decimal system, which is based
on ten digits: zero through nine. As the decimal system is based on ten digits,
it is said to be base -10 or radix-10 . Outside of specialized requirement such
as computing , base-10 numbering system have been adopted almost universally.
The decimal system with which we are fated is a place-value system, which means
that the value of a particular digit depends both on the itself and on its
position within the number.
Decimal
Expansion of numbers
A decimal expansion of a number can be either,
Terminating
Non-terminating, non recurring
Non terminating, recurring
Non terminating, recurring
‘‘Recurring’’ means ‘‘repeating’’. In
this form, when we divide a number by another, remainder never becomes zero,
and also the number does not repeat themselves in any specific pattern. If a
number is non terminating and non repeating, they are always classified as
irrational number. For example,
0.1010010001000010000010010000……. does
have a pattern, but it is not a fixed-length recurring pattern, so the number
is irrational.
What
is a number line?
A number line is a
line with marks on it that are placed at
equal distance apart. One mark on the number line is usually labelled zero and
then each successive mark to the left or to the right of the zero represents a
particular unit such as 1, or 0.5. it is a picture of straight line.
THANK YOU
إرسال تعليق