fifteen

1 one 

2 two 

3 three 

4 four 

5 five 

6 six: chap nì dẽ huông 

7 seven 

8 eight 

9 nine 

10 ten 

11 eleven 

12 twelve 

13 thirteen 

14 fourteen 

15 fifteen 

16 sixteen 

17 seventeen 

18 eighteen 

19 nineteen 

20 twenty 

21 twenty-one 

22 twenty-two 

23 twenty-three 

24 twenty-four 

25 twenty-five 

26 twenty-six: + 

27 twenty-seven 

28 tưenty-eight 

29 twenty-nine 

30 thirty 

31 thirty-one 

32 thirty-two 

33 thirty-three 

34 chap thirty-four 