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暗算クイズ - 角度の問題・割合と速さ

UCARON Education Contains ads

Try solving problems involving angles, ratios, and speeds in your head. If you get stuck, a diagram will help you understand "why" it works that way.

Price
Free
No in-app purchases
Updated
Oct 27
2026 · v1.0.0
Get it onGoogle Play See alternatives

Screenshots

  • 暗算クイズ - 角度の問題・割合と速さ screenshot 1
  • 暗算クイズ - 角度の問題・割合と速さ screenshot 2
  • 暗算クイズ - 角度の問題・割合と速さ screenshot 3
  • 暗算クイズ - 角度の問題・割合と速さ screenshot 4
  • 暗算クイズ - 角度の問題・割合と速さ screenshot 5

About 暗算クイズ - 角度の問題・割合と速さ

This app helps you solve mental arithmetic problems in your spare time. It includes problems involving angles, ratios, speed, and more.

[What you can do]
- Choose from geometry, everyday life, and word problems.
- Choose your difficulty level.
- Instantly see if your answer is correct.
- View diagrams for explanations if you're unsure.
- Present more problems of common mistakes.
- See your success rate and average time for each problem type.
- Focus on practicing only specific types of problems.
- Export your progress to a file before changing devices.
- Supports both bright and dark screens.

[Note]
- Your progress is saved on this device. No account is required.
- Advertisements will appear at the bottom of the screen. Viewing diagrams requires watching one video advertisement.

What’s new

Version 1.0.0 · Updated October 27, 2026

初めてのリリースです。

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