Ch't article feut coumenchi en cotentinais

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.

La sépultuthe à Dgillaume lé Contchéthant mouontre la date en neunméthos Romains:
MLXXXVII =1087

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

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