Abacus is an instrument that was invented about 3000 years ago primarily in China, which later spread through countries like Korea, Japan, Taiwan, Malaysia, etc. It was used in ancient times for calculating numbers through the Basic Arithmetic System. It has now been proven as a ‘Whole Brain Development’ tool over the last two decades. Abacus became popular over the world after being transformed from a calculating instrument into a ‘Holistic Brain Development System’, in addition, to making Math learning easy and effective.