This app generates formulas and solutions and allows you to train Soroban as many times as you like.
Users can use Soroban to perform count calculations, multiplication, and division as many times as they like.
You can specify the number of times the number is calculated in lines.We confirmed the bug in the division using the research function.
Please use it without pressing the research button.I have a plan for Formula for the Abacus 2.0, and would like to develop it and release it for a fee.
https://andro.io/app/abacus-j7su
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