Hellow guys, Welcome to my website, and you are watching [덧셈과 뺄셈 5] 한층 업그레이드 된 두 자리 수의 뺄셈 (2). and this vIdeo is uploaded by 채널암산(권쌤) at 2021-11-26T16:00:15-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
