2018-08-28T06:47:03ZFluxBBhttps://www.mathisfunforum.com/viewtopic.php?id=24592Abacus is a calculating tool which first originated in the European countries. However, it was in China where Abacus became popular and was used for day to day calculations. Predominantly, used as a calculating tool, it has a frame consisting of wires which are attached to frame and beads which slide along these wires. advert removed by administrator]]>https://www.mathisfunforum.com/profile.php?id=2194622018-08-28T06:47:03Zhttps://www.mathisfunforum.com/viewtopic.php?pid=405397#p405397