Roman numerals are like letters in a special number language that ancient Romans used to write numbers.
How Roman Numerals Work
Think of Roman numerals as blocks, each letter stands for a certain number, just like how 10 blocks make a tower of 10.
- I is like one block (1)
- V is like five blocks (5)
- X is like ten blocks (10)
- L is like fifty blocks (50)
- C is like hundred blocks (100)
- D is like five hundred blocks (500)
- M is like thousand blocks (1000)
Putting It All Together
When you see a number, it’s like building with blocks, sometimes you add them together, and sometimes you subtract.
For example:
- VI means 5 + 1 = 6
- IX means 10 - 1 = 9 (like taking one block away from ten)
So if you see XVII, that’s 10 + 5 + 1 + 1 = 17, like counting blocks as you stack them!
Examples
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See also
- Why Are There 60 Minutes In An Hour Instead Of 100?
- How Does A Brief History of Number Systems (1 of 3: Introduction) Work?
- What does I to XII mean?
- What are alphabetical numerals?
- What are alphabetic numerals?