Advantages of Using Abacus People are using the abacus as a source of learning form a long time as they are getting benefits from it. The abacus is made up of the number of rows made of movable beads. These beads represent digits. Using an abacus you can perform all the basic arithmetic operations like addition, multiplication, subtraction, division, finding out of Square, Square Roots, Cubes, and Cube Roots.