Hellow guys, Welcome to my website, and you are watching [기초 주산 9] 윗알과 아래알 2개를 동시에 내려줘요~~ (덧셈 맞아요)(홈스쿨). and this vIdeo is uploaded by 채널암산(권쌤) at 2020-06-05T17:30:00-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
