'Maths Rock' is a small size application but very helpful for those who want to make their calculations stronger and faster.
Everybody is recommended to play this game at least 10 minutes daily.
It would be better if you get someone as your competitor to compete each other.
It will be excellent if you finish the game within 30 seconds with all correct answers.
It will be good if you finish the game within 1 minute with at least 8 correct answers.