The Indian Abacus is an educational tool for learning to do fast and accurate mental arithmetic, particularly it helps in enhancing their brain skills such as Concentration, Visualisation (Photographic Memory) by activating the right brain, The Seat of Intelligence. This present invention introduces a tool which can display colour images representing any value by moving the sliders. Indian Abacus company is the first one to offer learning of Abacus program in online mode.Read less