Korean numbers have Sino korean and Native korean. What's the difference between the two?
It's different for different usage.
I know It' can be really confusing to learn it for the first time.
for example, when counting money Sino-number is used.
백원, 백 오십원, 오백원, 천원, 천 오백원, 만원, 만 오천원, 삼만원
when counting the number things, Native-number is used.
사탕 한 개, 책 두 권, 꿀밤 다섯 대.
but when the number of things is 20,30,40... etc
you can say 이십개,삼십개,사십개
사탕 이십개, 책 이십권, 꿀밤 삼십대
NOTE!! 십 개 for 열개 is not used.
so 사탕 십개, 책 십권 is not used.
when saying time (maybe really confusing) both numbering systems are used.
1:15 = 한시 십오분
2: 30 = 두시 삼십분
when saying hours, native-number is used and when saying minutes and seconds, sino-numbering is used.
두시 십오분 이십초
열시 구분 삼초
if you have more questions, feel free to ask me