Réponse:
bonjour
a- =B2+C2+D2
b- =B2+B3+B4
c- = B5/3
= MOYENNE(B2:B4)
BON WEEK-END
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Réponse:
bonjour
a- =B2+C2+D2
b- =B2+B3+B4
c- = B5/3
= MOYENNE(B2:B4)
BON WEEK-END