Abacus/Manual/Quick use

< Abacus‎ | Manual

The quick use of an abacus is almost like the quick use of a math tool of today. If you have read the past sections then you would know that there are five earth beads and two heavan bead to a row.

Abacus heavan and earth beads

The addition, subtraction, multiplication, and divisions all are after this section and are in order from easiest to hardest.