RadixPico: Number Base Quiz
Arithmetic in bases 2–10
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Familiar math, a new twist! Add, subtract, and multiply in bases 2–10. Practice at your own pace, then race through 10 questions to beat your best time.
What if 1 + 1 = 10?
In binary, it does! Change the number base, and familiar arithmetic becomes a fresh puzzle.
Number Base Quiz: Math Evolved challenges you to add, subtract, and multiply in bases 2 through 10. Explore new ways to represent numbers as you work through carries, borrowing, and more.
FOUR DIFFICULTY LEVELS
Progress from simple addition and subtraction to multiplication and calculations with more digits. Choose the level that suits you and take on a tougher challenge when you are ready.
TIME ATTACK
How quickly can you solve 10 questions? You have 300 seconds to finish. Aim for each level’s target time and improve your personal best.
PRACTICE MODE
Take your time with no countdown or time limit. Skip a tricky question and keep practicing at your own pace.
LEADERBOARDS
See the top 20 players at each level. Sharpen your skills and work your way up the rankings.
HELPFUL NUMBER KEYS
Only the digits available in the current number base can be entered. Subtraction questions can also have zero or negative answers.
FIVE LANGUAGES
Switch between Japanese, English, Simplified Chinese, Korean, and Spanish in the app’s settings.
See familiar arithmetic from a new perspective. Your next 10-question challenge is waiting!
The app includes addition, subtraction, and multiplication. Division is not included.
An internet connection is required to submit scores and view leaderboards.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, SHUZO HASEGAWA, 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 Linked to You
The following data may be collected and linked to your identity:
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- SHUZO HASEGAWA
- Size
- 16.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 4 more
- English, Japanese, Korean, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Shuzo Hasegawa