GYAKUSAN - Calculate backward

Improve Math skills with fun!!

Only for iPhone

Free · Designed for iPhone

iPhone

The New type of Math drill. Making formulas is a good exercise for your brain from the answer. Improve your Math skills!! The New type of Math drill. Making formulas is a good exercise for your brain from the answer. Improve your Math skills!! All of the four arithmetic operations are provided. This APP is pretty simple to use, everyone can play and enjoy this APP, and then improve your calculation power. For kids, it's suitable. There are 81 stages, from 1-1 to 9-9.(proceeding 1-2,1-3,...,1-9,2-1,2-2,...) You can get the Medal after clearing these stages in time. Complete to collect medals, even if Questions can be more difficult in higher stages. ▼For training in calculation This App provides you with questions using all of the four arithmetic operations. You rarely show the same question while using this App because this app questions you randomly from huge lots of questions. ▼Simple to use You can answer question by choosing the number from the options. ▼Medals You can get medals when you clear a stage. ▼Coins Only a coin needs to play a stage. you get 3 coins everyday when the first time you use this App a day. ▼Multi Languages This app dealt with Japanese and English. ▼Play for free!! ▼Defects/Requests Please contact us by email at tsiapp005a202503@triad-sol.co.jp. ▼Terms of service https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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Fixed some malfunctions.

Version 1.0.1

The developer, Triad Solution Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    • Seller
      • TRIAD SOLUTION INC.
    • Size
      • 65.8 MB
    • Category
      • Education
    • Compatibility
      Requires iOS 12.0 or later.
      • iPhone
        Requires iOS 12.0 or later.
      • iPod touch
        Requires iOS 12.0 or later.
      • Mac
        Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 1.0 or later.
    • Languages
      • English
    • Age Rating
      4+
      • 4+
      • Learn More
      • Infrequent
        Contests

        Contains
        Gambling and Contests
    • Copyright
      • © 2025 Triad Solution Inc.
  • Privacy Policy

    • More by Triad Solution Inc.

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