Breaking Through Operational Mistakes!
A natural computational training system for error-free computation is available.

〈Concepts in a nutshell~ Visual concept calculations!〉
The concepts are easy to understand with diagrammatic concepts that can be grasped at a glance.

〈Computational Ability Up!〉
You can improve your calculation skills quickly and accurately by practicing calculations within a limited time with the '10-Minute Calculation Test'.