Mental Math Expert for iPhone
Practicing math is a great way to keep your brain sharp. Mental Math Expert: Playground is one of many apps you can use to improve your calculation speeds. It comes with addition, subtraction, multiplication, division, exponent, and square root modes. You can choose your own number range and set a time limit.
The app has a game mode going from table 1 to 20. You get challenged in different calculation modes and can compare your performance with others on the worldwide leaderboards. The app keep an eye on your stats too.
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