Solve an arithmetical problem and finish running 42km. You can study the arithmetic with game feeling.
Input the answer of the numerical calculation displayed on a screen with a number button. If the right answer is inputted, the following problem will be displayed automatically. Solve a problem continuously, and finish running course.
Select difficulty and course, you can play a stage that suits you.
Your play record remains, you can see your records at any time.
You can compete with friends and player all over the world. get the achievements( Google Play Games ONLY ).