Ancient Romans used a special method of writing their numbers.
We learned about Roman Numerals when we were reading about the 10 Commandments with the numerals on this format. They wrote V instead of 5, and wrote IX instead of 9.
Romans Numerals are based on the following symbols:
one is I
five is V
ten is X
fifty is L
a hundred is C
five hundred is D
a thousand is M
Download these FREE Numerals and Roman Numerals Matching Cards
The Rules in Forming Numbers
When a symbol appears after a larger (or equal) symbol it is added
Examples:
VI = V + I = 5 + 1 = 6
LXX = L + X + X = 50 + 10 + 10 = 70
But if the symbol appears before a larger symbol it is subtracted
Examples:
IV = V − I = 5 − 1 = 4
IX = X − I = 10 − 1 = 9
Numbers greater than 1,000 are formed by placing a dash over the symbol, meaning “times 1,000”.
We don’t use the same symbol more than three times in a row. However, we noticed that IIII is sometimes used for 4, in clocks/ watches.
You can download these FREE Numerals and Roman Numerals Matching Cards to make learning more fun. We also added the English and Filipino words of the numbers.
* Free files are for personal use only. Not for sale .
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