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  • #: 48394
  • Price: free ($0.00) In Apple Store
  • Category: Games
  • Updated: 2009-10-22
  • Current Version: 1.1.0
  • 1.1.0
  • Size: 0.70 MB
  • Language: English, Japanese
  • Seller: Nobuatsu Sekine
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 2.2.1 or later
  • © 2008 Nobuatsu Sekine
  •  Add to Favorite apps



No1 is a simple arithmetic exercises of the mind. Make the result of expressions to "1", by changing the operators "+, -, ×, ÷". Those operators can be changed by tapping.

For example


should be changed to


One game can be done in 1, 2 minutes so it can be a good small pastime.

"No.1 Advance" is advanced version of

"Time Trial" mode is competed the number of correct answers in specific time. "Score Trial" mode is competed the time to solve the specific number of expressions. The "Short" mode is 60 seconds or 10 questions, "Medium" is 180 seconds or 25 questions and "Long" is 300 seconds or 50 questions. "Free" mode doesn't have any limits, just continue solving as long as you want.

There is an advanced version of No.1, called "No.1 Advance". The new features are...

1. Renewed screen design.

2. Added selecting question level function from Kids, Easy, Normal and hard. (No.1 only has Normal level.)

3. Displaying hint function by tapping "=" once.

4. The question can be passed by tapping "=" again, then No.1 Advance stops screen to check the correct answer. (No.1 just stops for a few seconds and automatically moves to next question.)

5. Added function to pause the game by tapping lower part of screen. (Around Time and Score label.)

6. The last solved question is displayed while pausing. When a question has been solved accidentally, the user can check the correct answer by pausing the game.

If you like No.1 (free version), please try advanced version.

What's New in Version 1.1.0

Changed interface design

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The information may be outdated (2017-03-06 22:31:44). For actual information go to iTunes

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