Abacus Counting. The abacus is usually constructed of varied sorts of hardwoods and comes in varying sizes. The frame of the abacus features a series of vertical rods on which a variety of wooden beads are allowed to slip freely. A horizontal beam separat

An abacus is a counting tool that has been used for thousands of years. Throughout history, calculating larger numbers has been difficult, especially for the typical uneducated merchant. In that scenario, the idea of the abacus was born. Solving problems

You will learn to count up to 999,999,999. You will be able to set and read any number on you abacus. Practice exercises will also introduce you to the first step of mental mathematics. By the end of the course you will be all set to jump ahead and learn