Roman number system is named so because it was introduced in Rome. The Romans discovered a new and compact way of writing numbers. They used Latin language as well as English language letters to write numbers in an easier way. Initially, they started using Roman numbers for the names of emperors and their sons, such as, George IV. Roman numbers are still widely used in real life.
Symbols used in Roman number system are as follows:
Rules for Writing Roman Numbers
There are few rules which are to be followed while writing Roman numbers:
Let us have a look at an example of Roman numbers.
Example: Write following numbers in Roman number system:
503, 900 and 1454.
(1) 503 can be written as 500 + 3.
500 = D
3 = III
For addition, write larger number before.
Therefore, 503 = DIII.
(2) 900 can be written as 1000 - 100
1000 = M
100 = C
For subtraction, smaller number comes before.
Therefore, 900 = CM.
1454 can be written as 1000 + 400 + 50 + 4
1000 = M
400 = 500 - 100 = CD
50 = L
4 = 5 - 1 = IV
Therefore, 1454 = MCDLIV
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