Hellow guys, Welcome to my website, and you are watching Abacus Lesson 6 // Simple Addition (#'s 0-10) ONES'S column // Step by Step // Tutorial. and this vIdeo is uploaded by The HEV Project at 2013-07-04T17:56:29-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.