When do you use Sino-Korean numbers and Native Korean numbers?

Question

Answer

There is a great video in YouTube.:)

Here is the link, 
https://www.youtube.com/watch?v=2IJ_r--02hs

\^o^/

Answer

Sino-korean numbers: counting money, measuring, doing math, phone numbers, counting time(EXCEPT for hours. Hours always use native korean numbers), counting and naming each month.

Native korean numbers: Counting things/people/actions, talking about hours

That's how I learned it. Somebody please correct me if I'm wrong.