Today we are going to complete a lesson about Roman Numerals. This is not a topic we have covered in great detail, so I have found a video that may help.
I'm glad I watched that video, I know some really useful rules now that I need to remember when working with Roman numerals:
- When a symbol appears after a larger symbol, it is added (eg: VI = V + I = 5 + 1 = 6)
- When a symbol appears before a larger symbol it is subtracted (eg: IX = X – I = 10 – 1 = 9).
- The numerals are written like this because you can not have more than three matching symbols in a row.
The following rhyme may help to remember these rules.
When “left” is small and “right” is bigger,
Subtract the “left” from “right-hand” figure.
When you are ready click on the link below for today's work. Remember, you don't need to print the sheets off, you can use any paper that you have available.
Busy Ant Maths: Roman Numerals.
Roman Numerals 1 - 100
Here is a fun song for when you are finished.
You will find activities that link to this topic on Mathletics.