On, yirmi, otuz, kırk, elli, altmış, yetmiş, seksen, doksan, yüz.
 - Ten, twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety, hundred.
Konuşma otuz dakika sürdü.
 - The speech lasted thirty minutes.
White ailesi Tokyo'ya on otuzda varacak.
 - The White family will arrive in Tokyo at ten thirty.
O otuzdan aşağı olamaz.
 - He can't be under thirty.