Hero Arithmetic Class was created to help you study a variety of arithmetic and ^ ^
If you want to practice or study arithmetic, download it ~
โ 10 problem solving modes โ
If you are not familiar with arithmetic, it is a safe mode that can solve 10 problems without any time limit.
Try to solve the problem slowly.
โ 1-minute loosening mode
Challenge yourself how many questions you have to solve in one minute!
You will find yourself solving more and more problems ^ O ^
โ Unlock mode in 5 seconds โ
If you solve the problem, time is full again.
Feel your concentration improved in the tension of solving problems in less than 5 seconds.
โ Unlock until Wrong mode โ
In this mode, you can choose one or more of the four arithmetic operations that you are not toxic to practice intensively.
How long can you solve the problem? ^^
Basic calculations and advanced calculations can be performed.