|  flash 100フラッシュ100 | 
| Categoly:Game For mental exercises, do this easy "add", "negative", "multiplication", and "division"! ■Time Attack mode 
[20]…The time you took and the number of correct answers out of 20 questions will be clocked up. ■Mental Calculation mode 
The math formula will be disappeared after a certain period of time. |   | 
| Time Attack & Mental Calculation  | Cipher quickly!  | OnlineRanking  | 


 

 
	







































































































