With this game you or your children can improve their mathematical skills, test mental math and improve patience level.
*** FEATURES: ***
- Only supports two arithmetic operations: addition, substraction.
- The value of an expression is always less than 9.
- There're 4 game-modes (from easy to hard) to play.
- Share and compare scores with other players.
- Very good for you to train your brain.
HOW TO PLAY:
- Make mental calculation as quickly (quicks) as possible.
- Tap to rotate the shapes (square, pentagon, hexagon) clockwise and catch the ball of question mark with the matching side of answer.
- Reach high scores.
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