توضیحات:

Practice your mental math skills by testing yourself with arithmetic problems.
-Test your mental stamina by seeing how far you can make it in the 'Marathon' mode
-See how quick you can think in the "100m Dash" mode
-Don't feel strong in math? No worries, build your mental strength in "Math Workout" mode
No matter where you feel your math level is, give this app a try as studies show that practicing mental math is healthy for your mind
Also this app is FREE with no ads!