O1I0 Flash Mental Arithmetic description

- When you start the game, you will be presented with a random integer for each level.
- After all numbers are displayed, a window for entering the sum will be displayed for 10 seconds.
- If you enter the sum within 10 seconds, you will get the correct answer.
- If the answer is correct, you get 1 point; if the answer is wrong or the time runs out, the game ends.
- This is a game where you repeat this to get as high a score as possible.

----------------------Game Mode----------------------
Practice Mode
- Improve your skills in practice mode!

Ranking System
- Login to Google Play and challenge the ranker!

----------------------Credit----------------------
BGM - Don’t Forget Me by Spheriá | https://soundcloud.com/spheriamusic
Music promoted by https://www.chosic.com/free-music/all/
Creative Commons CC BY-SA 3.0
https://creativecommons.org/licenses/by-sa/3.0/

SE - https://taira-komori.jpn.org/game01.html