The hardest decile to count in France: every form is four-twenties-plus-a-teen. The pattern resets at 100 with cent, the first base word without a vigesimal flavour since soixante.
Quatre-vingt-dix. Literally four-twenties-ten (4 x 20 + 10 = 90). No s on vingt because dix follows. Belgium and Switzerland use nonante instead.
How do you say 91 in French?
Quatre-vingt-onze. Built as 4 x 20 + 11. The form onze is used because we are reading the teens of the 80-base block (80 + 10 = 90, 80 + 11 = 91 ... 80 + 19 = 99).
How do you say 99 in French?
Quatre-vingt-dix-neuf. Four-twenties-nineteen (4 x 20 + 19). Three morphemes after quatre-vingt: dix + neuf. Belgium and Switzerland: nonante-neuf.
How do you say 100 in French?
Cent. No article. Stable pronunciation /sɑ̃/. The first time vigesimal logic stops governing the count.