Number / 숫자[수짜]
The Korean language has two regularly used sets of numerals, a native Korean system and Sino-Korean system.
one (native Korean), one (Sino-Korean)
h a n a i l
two (native Korean), two (Sino-Korean)
d u l i
three (native Korean), three (Sino-Korean)
s e t 섿 s a m
four (native Korean), four (Sino-Korean)
n e t 넫 s a
five (native Korean), five (Sino-Korean)
d a s eo t 섣 o
six (native Korean), six (Sino-Korean)
yeo s eo t 섣 yu k
seven (native Korean), seven (Sino-Korean)
i l g o p ch i l
eight (native Korean), eight (Sino-Korean)
yeo d eo l 덜 p a l
nine (native Korean), nine (Sino-Korean)
a h o p g u
ten (native Korean), ten (Sino-Korean)
yeo l s i p
twenty (native Korean), twenty (Sino-Korean)
s eu m u l i s i p
thirty (native Korean), thirty (Sino-Korean)
s eo r eu n s a m s i p
forty (native Korean), forty (Sino-Korean)
m a h eu n s a s i p
fifty (native Korean), fifty (Sino-Korean)
s wi n o s i p
sixty (native Korean), sixty (Sino-Korean)
ye s u n yu k s i p
seventy (native Korean), seventy (Sino-Korean)
i l h eu n ch i l s i p
eighty (native Korean), eighty (Sino-Korean)
yeo d eu n p a l s i p
ninety (native Korean), ninety (Sino-Korean)
a h eu n g u s i p
hundred (Sino-Korean)
b ae k
thousand (Sino-Korean)
ch eo n
ten thousand (Sino-Korean)
m a n
Reference : http://en.wikipedia.org/wiki/Korean_numerals