The abacus, also called a counting frame, is a calculating tool that was in use centuries before the adoption of the written modern numeral system and is still widely used by bankers, merchants and traders world over.
The abacus can be used for multiplication, division, addition, subtraction and squaring operations at high speeds.
Abacus is used to teach kids how to calculate by manipulating the beads. Initially, kids use the abacus to calculate gradually the calculations are performed mentally, without the abacus by visualizing the bead manipulation. These programs are scientific brain management techniques that unleash the infinite potential of the human brain.