Soroban is considered as the first calculator in Japan. It’s
a bar and normally 33 X 6 cm. It has beads and people slide the beads to
calculate. Soroban calculates based on the decimal system.
As its benefits, it fosters a sense of numbers, helps
understanding of calculation process, develops mental calculation, and so on.
Many parents have children to learn soroban.
When I was a student, classmates who learn soroban had an
amazing speed (to me) to calculate numbers even without using a pen & a
note. They can calculate numbers in their mind! I thought “I wish my parents
had me go to a soloban school.”
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