Cardinal numbers Ordinal numbers
1 – one 1 – first
2 – two 2 – second
3 – three 3 – third
4 – four 4 – fourth
5 – five 5 – fifth
6 – six 6 – sixth
7 – seven 7 – seventh
8 – eight 8 – eighth
9 – nine 9 – ninth
10 – ten 10 – tenth
11 – eleven 11 – eleventh
12 – twelve 12 – twelfth
13 – thirteen 13 – thirteenth
14 – fourteen 14 – fourteenth
15 – fifteen 15 – fifteenth
16 – sixteen 16 – sixteenth
17 – seventeen 17 – seventeenth
18 – eighteen 18 – eighteenth
19 – nineteen 19 – nineteenth
20 – twenty 20 – twentieth
30 – thirty 30 – thirtieth
40 – forty 40 – fortieth
50 – fifty 50 – fiftieth
60 – sixty 60 – sixtieth
70 – seventy 70 – seventieth
80 – eighty 80 – eightieth
90 – ninety 90 – ninetieth
100 – one hundred 100 – one hundredth
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