Easy to understand basic number systems such as base-ten and place values. Although the abacus is a concrete tool,the number as shown on the abacus is abstract, based upon the decimal system. This linkage with both the concrete and abstract help children to understand the concept of place value and base ten. To understand concepts of carrying and borrowing in arithmatic. Easy to understand the combinations of five and ten and the complement of numbers.
Children can determine themselves the calculation process step by step.
Easay to visualize the close relation between numbers and numerals. Using a calculating Device motivates the children to have an active attitude toward study. The children really enjoy using Soroban, like to move the beads, they learn place value really effectively and they pick up the structure very fast. They learn and understand the number concepts better than just using paper and pencils. Practicing soroban developes the children's ability of mental calculations.