Roman Number System

7 symbols are used to represent the whole number system in Roman Number System.

The seven symbols are given as:

I = 1

V = 5

X = 10

L = 50

C = 100

D = 500

M = 1000

The value of the numeral is the sum of the values of the symbols.

like:

1=I

2=II

3=III

4=IV

5=V

6=VI

7=VII

8=VIII

9=IX

10=X

In this system the symbols are read from left to right.

You must have noticed IV and VI having same symbols represent different value. But why?

There are specific rules to write the roman number system.

• We can't write the same symbol more than three times.

    we can't write 4 as IIII. it's wrong . 4 is written as IV.

• When a symbol appears after a larger or equal symbol, then it's added.

VI= 5+1=6

XI=10+1=11

XX=10+10=20

•When a symbol appears after a smaller symbol, then the smaller symbol is subtracted from the larger symbol.

as

IV=5-1=4

IX=10-1=9 

LCXIV= (100-50) + 10 + (5-1)  = 64

Thank You.

For any query comment below.

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