20 – sumul (스물)
30 – surun (서른)
40 – mahun (마흔)
50 – shwin (쉰)
60 – yesun (예순)
70 – ilhun (일흔)
80 – yodun (여든)
90 – ahun (아흔)
100 – bek (백)
One thing I want to point out is that numbers ending in 1, 2, 3, or 4 will be shortened when a counter follows the number. For example, 11 cars will be yol han de (열한 대) instead of yol hana de.
Here are the shortened forms:
hana (하나) = han (한)
dul (둘) = du (두)
set (셋) = se (세)
net (넷) = ne (네)
2 Comments
How about 22 years old? How do we say it in Korean?
Well there are two ways to say it:
you can use the native korean numbers and the counter 살 and the sino korean numbers using the counter 세.