MathTonic
It is an android app available on Google playstore .
It helps the ones who is weaker in math or who wants to improve
more for competitive exam. It really makes genius in math. It is beneficial
for all who wants to make his/her calculation faster especially for teenagers.
There are countless numbers of levels for practice all the operation +,-,*,/ of math.
As levels increase calculation will we tougher and timer time will reduce.
On scoring a minimum score in every level,upper level will be unlocked.
you can see scores of different level in score board.
Download From here
https://play.google.com/store/apps/details?id=com.ak.mass.mathtonic