ابوعلي
07-02-2005, 05:10 PM
[align=left]Roman Numbers
The numbers that we normally use (1, 2, 3 etc) are called "Arabic numbers". But we sometimes use another system for writing numers - "Roman numbers". The Romans used letters of the alphabet to represent numbers, and you will occasionally see this system used for page numbers, clock faces, dates of movies etc
:The letters used in Roman numbers are
I = 1
V = 5
X = 10
L = 50
C = 100
D = 500
M = 1000
In general, letters are placed in decreasing order of value, eg XVI = 16. Letters can be repeated one or two times to increase value, eg XX = 20, XXX = 30. Letters cannot be repeated three times, so XXXX is not used for 40. In this case, XL = 40 ( 50 minus 10)l
Examples
The Introduction is on page vii
The Introduction is on page 7 =
MCMXCVII saudienglish.net
saudienglish.net 1997 =
http://www.geocities.com/abuali668/photo/romannumbers.jpg
To convert any number into Roman number
just write it down and I`ll convert it for you
transferred[/center]
The numbers that we normally use (1, 2, 3 etc) are called "Arabic numbers". But we sometimes use another system for writing numers - "Roman numbers". The Romans used letters of the alphabet to represent numbers, and you will occasionally see this system used for page numbers, clock faces, dates of movies etc
:The letters used in Roman numbers are
I = 1
V = 5
X = 10
L = 50
C = 100
D = 500
M = 1000
In general, letters are placed in decreasing order of value, eg XVI = 16. Letters can be repeated one or two times to increase value, eg XX = 20, XXX = 30. Letters cannot be repeated three times, so XXXX is not used for 40. In this case, XL = 40 ( 50 minus 10)l
Examples
The Introduction is on page vii
The Introduction is on page 7 =
MCMXCVII saudienglish.net
saudienglish.net 1997 =
http://www.geocities.com/abuali668/photo/romannumbers.jpg
To convert any number into Roman number
just write it down and I`ll convert it for you
transferred[/center]