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 twenty eight
29 twenty nine
30 thirty
from eleven to thirty 从十一到三十.