Ordinal numbers for 11 to 100
Reminder: ordinal numbers agree in gender and in number with the noun they accompany.
Il primo classificato vince la medaglia d’oro.
First place wins the gold medal.
Mi ha ridetto la stessa cosa per la quinta volta.
He told me the same thing for the fifth time.
In general, the ordinal numbers for 11 to 100 are formed by taking the cardinal number, removing the final vowel and adding + -esimo/a/i/e.
11: undici → undicesimo
eleven → eleventh
12: dodici → dodicesimo
twelve → twelfth
20: venti → ventesimo
twenty → twentieth
21: ventuno → ventunesimo
twenty-one → twenty-first
58: cinquantotto → cinquantottesimo
fifty-eight → fifty-eighth
69: sessantanove → sessantanovesimo
sixty-nine → sixty-ninth
77: settantasette → settantasettesimo
seventy-seven → seventy-seventh
95: novantacinque → novantacinquesimo
ninety-five → ninety-fifth
100: cento → centesimo
one hundred → hundredth
However, the numbers that end in -tré (3) or -sei (6) don't drop their final vowel and the accent on -tré disappears.
33: trentatré → trentatreesimo
thirty-three → thirty-third
46: quarantasei → quarantaseiesimo
forty-six → forty-sixth
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