價格：免費
更新日期：2019-01-23
檔案大小：3.1M
目前版本：1.7
版本需求：Android 4.0.3 以上版本
官方網站：http://impressionbit.ru/2018/07/22/mentalmathematics/
Email：impressionbit@gmail.com
聯絡地址：RF ImpressionBit
Completely free and without ads.
A large number of settings allow you to smoothly improve your skill.
You can improve your mental ability on a daily basis with fast and effective training. The time account allows you to flexibly adjust the amount and speed of the exercise, which will allow you to notice your progress.
