たすひくかけるわる(trial version)

This is a trial version of "たすひくかけるわる". It will rise to Lv250. This is a game where a formula like "5 ? 2 = 3" is displayed and you have to answer the symbol that goes into the "?". Each time you have 30 seconds, the next formula will be displayed whether it is correct or incorrect, so please answer as quickly as possible. Depending on your results, your level will increase, and as your level increases, you will learn "assistance techniques". It is easier to improve your level if you have fewer mistakes than correct answers. It is important to answer quickly, but this is a game that emphasizes answering accurately. *No in-app purchases *No advertisements displayed *Does not use network