1

st

first

11

th

eleventh

2

nd

second

12

th

twelfth

3

rd

third

13

th

thirteenth

4

th

fourth

14

th

fourteenth

5

th

fifth

15

th

fifteenth

6

th

sixth

16

th

sixteenth

7

th

seventh

17

th

seventeenth

8

th

eighth

18

th

eighteenth

9

th

ninth

19

th

nineteenth

10

th

tenth

20

th

twentieth

21

st

twenty-first

22

nd

twenty-second

23

rd

twenty-third

24

th

twenty-fourth

25

th

twenty-fifth

26

th

twenty-sixth

27

th

twenty-seventh

28

th

twenty-eighth

29

th

twenty-ninth

30

th

thirtieth

31

st

thirty-first

40

th

fortieth

50

th

fiftieth

60

th

sixtieth

70

th

seventieth

80

th

eightieth

90

th

ninetieth

100

th

one hundredth

1,000

th

one thousandth

1triệu

th

one millionth