The Ancient Romans used Roman numerals as their numbering system.
Roman numerals use capital letters instead of numbers. This might sound complicated but it’s much easier than you think.
- I = 1
- V = 5
- X = 10
If you remember those three numbers you will know how to write up to 20 in Roman numerals!
Take a look at numbers 1 - 20 in Roman numerals.
If you put a letter after a larger one it means you add it.
XVI = 16
This means 10 (X) + 5 (V) + 1 (I) = 16
10 + 5 + 1 = 16
If you put a letter before a larger one it means you take it away.
IV = 4
This means you take 1 (I) away from 5 (V)
5 − 1 = 4
Now that you have read some examples, let's start the activities!