![]() Simply using a physical abacus mental calculation develops naturally. For the abacus/soroban user, every time they use the abacus they are training their mind for mental calculation by visualizing the bead movements in their head. So for most of us mental math remains challenging and somewhat unobtainable. Instead we learned a bag of mental math tricks that worked in some situations but not very well in others. ![]() The problem is most of us were never taught a robust, systematic way to think about mental calculation. ![]() We all understand how useful and necessary the ability to conduct mental calculation is in our daily lives. Soroban users can experience the efficiency of our base 10 numbering system by using place value and a fixed small number of symbols, exactly 10, to represent all numbers of any size! Because the abacus shows users visually our method of repetitive counting and place value, students understand the 3 in the number 374 signifies the fourth round of repeating the 100 two-digit numbers 00 to 99. Therefore abacus users develop a foundational understanding of our base 10 system, the digits representing all numbers within the system, and how the concept of place value deepens their understanding of what each number truly represents. Students learning math utilizing the abacus, learn numbers with the constant reminder and understanding they are working within a base 10 system. ![]() So each rod of the abacus represents a single base 10 digit, 0 through 9. The Japanese abacus or soroban is constructed on the base 10 numbering system. Our standard numbering system is a base 10 system, meaning our system of numbers has only 10 possible symbols or digits, 0 through 9, which are used over and over again to form any number. ![]()
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