In the ancient times, Abacus was used for calculating numbers by using the simple arithmetic system. The best tool was made by Japan, which is used worldwide till date. Abacus helps in developing the human mind for doing the calculations and word problems easily and efficiently.

We all know how brain is the most interesting part of our body. It is the control centre, which takes all the important decisions. It is divided into two parts; the left part is responsible for logical thinking and the right part has the control of artistic and three-dimensional senses. We can work very efficiently if both the parts work together with equal co-ordination.