무한연산

It contains the latest Korean elementary school math calculation courses for all grades.
By providing menus for each grade level and calculation, we have made it easy to access the missing parts.
Optimal UI is provided for both mobile phones and tablets.
Infinite math operation questions (continues continuously at random)
It is more subdivided than in the elementary school course, so you can start with easy questions.
You can easily study what you lack by providing YouTube links to related sections.
All questions are expressed in exact formulas.
Etc
We do not collect personal information.
No data is stored on the server.
Can be used offline.
In the case of lower grades, the questions may be duplicated.