1 = un
2 = deux
3 = trois
4 = quatre
5 = cinq
6 = six
7 = sept
8 = huit
9 = neuf
10 = dix
11 = onze
12 = douze
13 = treize
14 = quatorze
15 = quinze
16 = seize
17 = dix-sept
18 = dix-huit
19 = dix-neuf
20 = vingt


https://wordwall.net/resource/9119281/french/les-nombres-en-francais