How do I improve my math skills

I downloaded this app because I wanted to improve my mental math skills. It turned out to be useless because only addition is free. Other functions are locked and it appears you must pay to unlock them. Unless you need help with your addition skills, this is useless.

How can I improve my math skills? | Yahoo Answers

I downloaded this app because I wanted to improve my mental math skills. It turned out to be useless because only addition is free. Other functions are locked and it appears you must pay to unlock them. Unless you need help with your addition skills, this is useless.


How can I improve my math skills

How to improve my math skills to become a better programmer [closed] up vote 9 down vote favorite