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Roman Numerals

Hanna Daniel and Grace Brown

Grace Brown

on 6 March 2013

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Transcript of Roman Numerals

Hanna Daniel & Grace Brown Roman Numerals History - Roman Numerals were used in Ancient Rome
- No one is completely certain but most think they were first created/used during the 8th and 9th century BC
- The system practically ended along with the fall of Roman Empire (300 AD); however, some still use the system today
- Dionysius Exiguus created roman numerals when he was calculating the birth of Christ Mathematic Structure I One
II Two
III Three
IV Four
V Five
X Ten
XV Fifteen
XX Twenty
XXV Twenty-Five
L Fifty
LX Sixty
XC Ninety
C One-Hundred Sources Cited Advantages & Disadvantages Future Systems
& Modern Use Advantages: Disadvantages: - The roman numeral system has "checkpoints" for example: 1:I, 5:V (instead of IIIII), 10:X (instead of ten Is), etc...
- A smaller value letter to the left of a larger value letter is subtracted "Roman Numerals." Wikipedia. Wikimedia
Foundation, 03 Mar. 2013. Web. 03 Mar. 2013.

"Roman Numerals History and Use." Roman
Numerals History. N.p., n.d. Web. 03 Mar. 2013.

"Who Invented the Roman Numerals ?" Yahoo!
Answers. Yahoo!, n.d. Web. 03 Mar. 2013.
- Roman numerals are still being used today (occasionally) for things like the hours on a clock, bullet points on a paper, and suffixes for names
- We don't think roman numerals play a key role in our society today because even though they are used for clocks (etc), we could easily live without them Modern Uses - The roman numeral system is based on the letter "I" and that has impacted the european tally marks system and arabic number system that are used today
- The european tally marks system is also similar to roman numerals in that it has "V"s except they are usually upside down How it affected Future Numeral Systems Other Facts - The roman numeral system's "V" was thought of by making a "V" with your thumb and fore finger
- The "X" was thought of when you put two "V"s together and looking at you two for fingers - The roman numeral system did not have a zero which became a problem
- It only used 7 symbols which would be a problem in complex math Also: Roman Numerals are a base 10 system.
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