Ordinal numbers:-------Números ordinales
Ordinal Numbers
Ordinal Numbers from 1 through 1,000,000
1 st first 11 th eleventh 21 st twenty-first 31 st thirty-first
2 nd second 12 th twelfth 22 nd twenty-second 40 th fortieth
3 rd third 13 th thirteenth 23 rd twenty-third 50 th fiftieth
4 th fourth 14 th fourteenth 24 th twenty-fourth 60 th sixtieth
5 th fifth 15 th fifteenth 25 th twenty-fifth 70 th seventieth
6 th sixth 16 th sixteenth 26 th twenty-sixth 80 th eightieth
7 th seventh 17 th seventeenth 27 th twenty-seventh 90 th ninetieth
8 th eighth 18 th eighteenth 28 th twenty-eighth 100 th one hundredth
9 th ninth 19 th nineteenth 29 th twenty-ninth 1,000 th one thousandth
10 th tenth 20 th twentieth 30 th thirtieth 1,000,000 th one millionth
1° primero 11° undécimo 10° décimo 100° centésimo
2° segundo 12° duodécimo 20° vigésimo 200° ducentésimo
3° tercero 13° decimotercero 30° trigésimo 300° tricentésimo
4° cuarto 14° decimocuarto 40° cuadragésimo 400° cuadrigentésimo
5° quinto 15° decimoquinto 50° quincuagésimo 500° quingentésimo
6° sexto 16° decimosexto 60° sexagésimo 600° sexcentésimo
7° séptimo 17° decimoséptimo 70° septuagésimo 700° septingentésimo
8° octavo 18° decimoctavo 80° octogésimo 800° octingentésimo
9° noveno 19° decimonoveno 90° nonagésimo 900° noningentésimo
1 000° milésimo 10 000° diezmilésimo 100 000° cienmilésimo 1000 000° millonésimo
http://pagesperso-orange.fr/michel.barbot/hotpot/fig_numbers/ord1.htm
http://club.telepolis.com/englishweb/numbercardordin.html
http://www.janbrett.com/piggybacks/ordinal.htm#quiz