1:I
2: II
3: III
4: IV
5: V
6: VI
7: VII
8: VIII
9: IX
10: X
11: XI
12: XII
13: XIII
14: XIV
15: XV
16: XVI
17: XVII
18: XVIII
19: XIX
20: XX,30: XXX,40: XL,50: L,60: LX,70: LXX,80: LXXX
,90: XC,100: C,200: CC,300: CCC,400: CD,500: D,600: DC
, 700: DCC,800: DCCC,900: CM,1000:M