https://www.fluentu.com/blog/french/how-to-count-in-french/

1~16까지는 영어랑 비슷합니다.

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, 18, 19는 좀 별나요.

17 — dix-sept (10+7)
18 — dix-huit (10+8)
19 — dix-neuf (10+9)

20~69까지는 영어랑 비슷합니다. 단, 21, 31, 41, 51에는 et(and)이 사이에 추가됩니다.

20 — vingt
21 — vingt-et-un (20 and 1)
22 — vingt-deux (20+2)
23 — vingt-trois (20+3)
24 — vingt-quatre (20+4)
25 — vingt-cinq (20+5)
26 — vingt-six (20+6)
27 — vingt-sept (20+7)
28 — vingt-huit (20+8)
29 — vingt-neuf (20+9)

30 — trente

31 — trente-et-un (30 and 1)
32 — trente-deux (30+2)

40 — quarante
50 — cinquante
60 — soixante

...

69 — soixante-neuf (60+9)

70 대는... 

70 — soixante-dix (60+10)
71 — soixante-et-onze (60 and 11)
72 — soixante-douze (60+12)
73 — soixante-treize (60+13)
74 — soixante-quatorze (60+14)
75 — soixante-quinze (60+15)
76 — soixante-seize (60+16)
77 — soixante-dix-sept (60+10+7)
78 — soixante-dix-huit (60+10+8)
79 — soixante-dix-neuf (60+10+9)

80 대는 ㅡㅡ;...

80 — quatre-vingts (4×20s)
81 — quatre-vingt-un (4×20+1)
82 — quatre-vingt-deux (4×20+2)
83 — quatre-vingt-trois (4×20+3)
84 — quatre-vingt-quatre (4×20+4)
85 — quatre-vingt-cinq (4×20+5)
86 — quatre-vingt-six (4x20+6)
87 — quatre-vingt-sept (4×20+7)
88 — quatre-vingt-huit (4×20+8)
89 — quatre-vingt-neuf (4×20+9)

90 대는...O.O

90 — quatre-vingt-dix (4×20+10)
91 — quatre-vingt-onze (4×20+11)
92 — quatre-vingt-douze (4×20+12)
93 — quatre-vingt-treize (4×20+13)
94 — quatre-vingt-quatorze (4×20+14)
95 — quatre-vingt-quinze (4×20+15)
96 — quatre-vingt-seize (4×20+16)
97 — quatre-vingt-dix-sept (4×20+10+7)
98 — quatre-vingt-dix-huit (4×20+10+8)
99 — quatre-vingt-dix-neuf (4×20+10+9)

71에는 et(and)가 들어갔지만, 81, 91에는 없습니다.

100은 cent입니다. 단수입니다.

80,180,200,280,300,380,400,480,500,580,600,680,700,780,800,880,900,980 은 복수이므로 s를 붙입니다.

뒤에 남성 여성 명사가 올 때의 변화 규칙은...

...

불어로 1에서 100까지 세기 동영상도 있네요.