Es gibt nur:
I = 1 = I
V = 5 = V
X = 10 = X
L = 50 = L
C = 100 = C
D = 500 = D
M = 1000 = M
Eine kleinere Zahl hinter einer größeren heißt zusammenzählen.
Eine kleinere Zahl vor einer größeren heißt abziehen.
LX = 50 + 10 = 60
XL = 50 - 10 = 40
VI = 5 + 1 = 6
IV = 5 - 1 = 4
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
21 = XXI
22 = XXII
23 = XXIII
24 = XXIV
25 = XXV
26 = XXVI
27 = XXVII
28 = XXVIII
29 = XXIX
30 = XXX
31 = XXXI
32 = XXXII
33 = XXXIII
34 = XXXIV
35 = XXXV
36 = XXXVI
37 = XXXVII
38 = XXXVIII
39 = XXXIX
40 = XXXX
41 = XXXXI
42 = XXXXII
43 = XXXXIII
44 = XXXXIV
45 = XXXXV
46 = XXXXVI
47 = XXXXVII
48 = XXXXVIII
49 = XXXXIX
50 = L
51 = LI
52 = LII
53 = LIII
54 = LIV
55 = LV
56 = LVI
57 = LVII
58 = LVIII
59 = LIX
60 = LX
61 = LXI
62 = LXII
63 = LXIII
64 = LXIV
65 = LXV
66 = LXVI
67 = LXVII
68 = LXVIII
69 = LXIX
70 = LXX
71 = LXXI
72 = LXXII
73 = LXXIII
74 = LXXIV
75 = LXXV
76 = LXXVI
77 = LXXVII
78 = LXXVIII
79 = LXXIX
80 = LXXX
81 = LXXXI
82 = LXXXII
83 = LXXXIII
84 = LXXXIV
85 = LXXXV
86 = LXXXVI
87 = LXXXVII
88 = LXXXVIII
89 = LXXXIX
90 = XC
91 = XCI
92 = XCII
93 = XCIII
94 = XCIV
95 = XCV
96 = XCVI
97 = XCVII
98 = XCVIII
99 = XCIX
100 = C
105 = CV
110 = CX
118 = CXXVIII
120 = CXX
180 = CLXXX
200 = CC
240 = CCXL
300 = CCC
500 = D
1000 = M
Weitere Abkürzungen