Advantage of Base - n system:
There are two advantages in Base -n system
i) Addition of base -n system
ii) Multiplication of base -n system
Examples:
Question 1:
Solution:
Table value of Egyptian number system:
Regrouping the number of 
and 
we get,
and we get,\(15\) and \(15\)
and \(15\) From the above table we get,
\(= 10\) \( = 1\)From the table we get,
\(10\) \(=\) 
\(=\) \(10\) \(=\)
\(=\) Thus we get,
\(15\) \(= (10 \) \(+\) \(5\)
\(= (10 \) \(+\) \(5\) \(=\) ------ (1)
------ (1)\(= (10 + 5 ) \times 10\)
\( = (10 \times 10\) + (5 \times 10)\)
\(15\) \(= (10 \) \(+\) \(5\)
\(= (10 \) \(+\) \(5\) \(=\) ------ (2)
------ (2)Thus the sum of (1) and (2)
\(=\)
Question 2:
Find the product of the following:
Solution:
From the table we get,
\(=10\) \(=10 \times 10\)\(=10^{2}\)
\(=\)
Place Value Representation:
The Mesopotamian Number System
It is a \(\text{base - 60 system}\). It is also called as \(\text{sexagesimal system}\).
It is influenced by \(\text{Babylonian number system}\)
Example:
\(\text{1 hour = 60 minutes}\)
\(\text{1 minute = 60 seconds}\)
Symbols:
Example:
\( 640 = (10) \times 60 + 40\)
\(=\) \(10 \times\) 
\(+ 4 \times\) 
\(+ 4 \times\) 
Mayan Number System
Chinese Number System:
The Hindu Number System:
