the author of this app says:
CalcFaster is a game that can let you train your self to calculate fast. train your mind and challenge your friends in Game Center. You can train in adding tow digits numbers and three digits numbers, also you can train multiply tow digit number by on digit number. Time is limited so you have to calculate fast. The time will get shorter when you advance in levels. If have new high score, you can twitt it and let your friends know about your score.
What's New in version 1.1
Added subtract and divid operations.
Change the design.
- Requires iOS 5.0 or later.