1. Une entrée adulte, s'il vous plaît
 How to say 'a', 'an' or 'one'
Une entrée adulte, s'il vous plaît

2. The words un and une have two meanings in French. They can be used as numbers, meaning 'one'. They can also be used with the meaning of 'a/an'.

3. Un always goes with masculine words, whereas une goes with feminine ones.
UN GARÇON
UNE FILLE

4. To say 'some' or to state an unspecified amount des is used followed by the plural.
DES GARÇONS
DES FILLES

5. To make a word plural, you add an -s, but usually this isn't pronounced.
UNE RUE DES RUES
UNE ENTRÉE DES ENTREES
UN SAC DES SACS
UN EURO DES EUROS

6. The singular indefinite articles in French correspond to a, an, or one in English. The plural corresponds to some. There are three forms of the French indefinite article. UN
UNE
DES

7. Note that the plural indefinite article is the same for masculine and feminine nouns, whereas the singular has a different form for masculine and feminine.

8. The indefinite article usually refers to an unspecified person or thing.

9. The indefinite article can also refer to just one of something
Il y a un étudiant dans la salle - There is one student in the room.
J'ai une soeur - I have one sister.

10. When referring to a person's profession or religion, the indefinite is not used in French, although it is used in English. I know, I know, the exceptions never end. 
Je suis professeur - I am a teacher. Je suis catholique- I am catholic

11. Number:
0  zero 1  un 2  deux 3  trois 4  quatre 5  cinq 6  six 7  sept 8  huit 9  neuf 10  dix  

12. zÉro
Zay row
and not zo row

13. un
Nasal sound
Uhnnnnnnnn

14. deux
duhhhh

15. trois
trwah

16. quatre
Cat
rrr

17. cinq
Sank

18. six
See sssss

19. sept
Set and not sep t ( no P)

20. Huit
Wheat….

21. neuf
Nuf like stuff or snuff

22. dix
Seee ssss and now deee ssss