Roman Numerals The numbers that we normally use (1, 2, 3 etc) are called "Arabic numerals". But we sometimes use another system for writing numbers - "Roman numerals". The Romans usedletters of the alphabetto represent numbers, and you will occasionally see this system used for page number...
Once you get used to it, it makes the Roman numerals much easier to read quickly, as they are shorter than they otherwise could have been. Looking at the Roman numeral chart again above, we can see that the number 9 is written as IX. Essentially this means 10 minus 1, which equals ...