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Rapid Calculation

iPhone / iPad
  • Entertainment
  • Education
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This Application is designed for Rapid Calculation practice. It is a good choice for keeping brain clear and sharp.

- Plus and minus calculation
- 3 Number digits available
- 3 Demonstration Speed(Slow, Normal and Fast)
- 5, 10 or 15 Questions to choose
- 3 kinds of Show Mode

It is simple but functional and easy to use.

Search NinjaQ for more Color Tools and Apps.

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-Desk Clock Pro (卓上時計)
-Japanese Chinese Name Dictionary(日中姓氏辞典)
-Chinese Japanese Word Reference (中日漢字対照)