Les chiffes romaines sount des chiffes que no-z-écrit aveu des lettes de l'alphabet latin, dé depis le temps és Romains. Cha servit biâofaire, jûqu'oû temps que chiffes arabes feutent arrivaés en Ûrope latène.
Chute manyire-ilo de coumptaer feut prinse sus les Greis, qùi prénaient itou des lettes dé leur alphabet. Pouor coumptaer, i fâot luure :
| I
|
= 1
|
| V
|
= 5
|
| X
|
= 10
|
| L
|
= 50
|
| C
|
= 100
|
| D
|
= 500
|
| M
|
= 100
|
Aveu cha, il ount bâti eune palaunqùie de chiffes, par ajouot :
| II
|
= 2 (1+1)
|
| VI
|
= 6 (5+1)
|
| IX
|
= 9 (10-1)
|
| LX
|
= 60 (50+10)
|
| XCVII
|
= 97 (100-10+5+2)
|
| CDXLIV
|
= 444 (500-100+50-10+5-1)
|
| MMIX
|
= 2009
|
Vechin itou les graunds noumbes :
| Unitaés |
Unitaés + 10 |
Dizannes |
Chentannes |
Millyis
|
| 1 = I |
11 = XI |
10 = X |
100 = C |
1 000 = M
|
| 2 = II |
12 = XII |
20 = XX |
200 = CC |
2 000 = MM
|
| 3 = III |
13 = XIII |
30 = XXX |
300 = CCC |
3 000 = MMM
|
| 4 = IV |
14 = XIV |
40 = XL |
400 = CD |
4 000 = MMMM
|
| 5 = V |
15 = XV |
50 = L |
500 = D
|
| 6 = VI |
16 = XVI |
60 = LX |
600 = DC
|
| 7 = VII |
17 = XVII |
70 = LXX |
700 = DCC
|
| 8 = VIII |
18 = XVIII |
80 = LXXX |
800 = DCCC
|
| 9 = IX |
19 = XIX |
90 = XC |
900 = CM
|
