you know when you finish building a kitset desk or bookshelf and find some leftover screws that you forgot to put in?
I think that happened with french but instead of screws it was the numbers 70, 80 and 90
@vi Maybe someone told you already but some French speaker (Belgian and Swiss mostly) will say :
70 - septante
80 - huitante / octante
90 - nonante
Most French people will understand you, after some thinking (it's not natural for someone not used to it, but it's understandable).
But that's not in the "norm", not "allowed" by the "Académie française", so I don't think Duolinguo will allow it. ^^
@Seipas Yip, I went looking for some history/an explanation about the numbers and found out about those 😊
I tried using octante earlier to see what would happen and duo marked it wrong