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The Roman numeral system works by having separate symbols to represent different numbers but unlike your system there was no symbol for zero. Essentially we have 9 numbers and then add a zero on the end to denote 10s, two zeros to denote 100s and so on. the Romans simply had additional symbols to denotes 10s, 100s etc. Examples of Roman numerals and how they are worked out follows...

1 = I

2 = II (1 + 1)

3 = III (1+ 1 + 1)

4 = IV ( 1 before 5)

5 = V

then the system repeats...

6 = VI (5 + 1)

7 = VII (5 + 1 + 1)

8 = VIII (5 + 1 + 1 + 1)

9 = IX ( 1 before 10)

10 = X

Additional numerals exist for 50 (L), 100 (C), 500 (D) and 1000 (M) and they work on the same system so, for example...

XX = 20

XXX = 30

XL = 40

CCC = 300

CD = 400

CM = 900

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Q: How does the roman numeral system work?
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Related questions

How did the roman number system work?

The Roman numeral system was derived from the Etruscan numeral system and the Etruscans once ruled the Romans.


Is A a Roman numeral?

The Roman numeral system does not use the letter A.


Did Roman numeral evolve?

Yes the Roman numeral system evolved from the Etruscan numeral system and the Etruscans once ruled the Romans.


Which Roman Numeral does not exist?

The Roman Numeral system did not have a way to represent zero.


What does a 6 roman numeral look like?

The Roman numeral 6 is represented by the letter "VI" in the Roman numeral system.


What is roman numeral based on?

The Roman numeral system is based on the Etruscan numeral system and the Etruscans once had a powerful influence over the ancient Romans.


How would you write 5.11 in roman numeral?

The Roman Numeral system did not incorporate fractions.


What is the value of Roman numeral is E?

E is not used as a symbol in the roman numeral system.


Why was the roman numeral system replaced with the Hindu Arabic system?

Because the Hindu-Arabic numeral system contained a nought figure which made arithmetical calculations a lot easier to work out.


What is the Roman numerals for zero?

there is no roman numeral for itAnother answer: The Romans had no numeral to represent zero because there was no need for a zero in their system. We have 9 numbers plus the zero symbol. We add a zero on to the end of a number to convert it to tens and two zeros to convert it to hundreds and so on. The Romans simply had different symbols for tens and hundreds. For example we would write 1, 10, 20, 40, 50, 100 and 200 but the same numbers as Roman numerals would be I, X, XX, XL, L, C and CC, done quite simply with no need for a zero. In the middle ages monks, who still used Roman numerals and wrote in Latin, began to used the symbol N to represent zero (from the Latin Nullae meaning nothing).


When was the roman numeral system first used?

The Roman numeral system was first used by the Etruscans who once ruled the Romans.


How were roman numerals picked?

The Roman numeral system came from the Etruscan numeral system. The Etruscans once ruled the Romans.