Roman numerals are written using the seven
letters of the alphabet (shown in Table)
There are certain rules when using Roman
numerals:
Letters are arranged from the largest to
smallest.
Numbers are added to arrive at the value.
- For example XVI is X (10) +V (5) + I (1) = 16.
When a smaller number precede a larger
number, the smaller is subtracted from the larger.
- For example: IX is 1 (I) subtracted from 10 (X) = 9.
Roman Numeral
|
Number
|
I
|
1
|
V
|
5
|
X
|
10
|
L
|
50
|
C
|
100
|
D
|
500
|
M
|
1000
|