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Roman numerals....
1 = I
2 = II
3 = III
4 = IV (or IIII on old clocks, watches and sundials)
5 = V
6 = VI
7 = VII
8 = VIII
9 = IX
10 = X
20 = XX
30 = XXX
The numbers 11 - 19 and 21 - 29 follow the same pattern as the numbers 1 to 9 but preceeded by X or XX.

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15y ago

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