Köprünün eni otuz metre.
 - The bridge is thirty meters in width.
On, yirmi, otuz, kırk, elli, altmış, yetmiş, seksen, doksan, yüz.
 - Ten, twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety, one hundred.
Tom dün bana otuzdan fazla mesaj yazdı.
 - Tom wrote me more than thirty messages yesterday.
O otuzdan aşağı olamaz.
 - He can't be under thirty.