• New LEVEL UP system: The more you solve the harder it gets!
• Share results with family, friends and the rest of the world.
• Leaderboards & Achievements included (Game Center)
- The all new LEVEL UP system will challenge you!
- Stylish and intuitive user interface
- Subtract numbers from as fast as possible
- Share scores with family and friends
- Challenge everyone on Leaderboards & Earn all Achievements (Game Center)
How to play:
1) Subtract numbers together for 2 minutes.
2) For every 8 correct answers, you LEVEL UP and increase the difficulty.
Find out who among you is a Subtraction Master!