SumXMinus – Negative Math
Train math with negatives
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Created by a Math Teacher
Train your brain in just 30 seconds.
QuickMath Series
A fast and fun way to master mental math.
Can you find the right number pairs?
Use both positive and negative numbers
to reach the target.
Example:
(-2) + (-4) = -6
(-4) + (+5) = 1
Challenge yourself and improve:
• Negative number understanding
• Mental calculation speed
• Focus and thinking skills
From upper elementary to middle school level.
QuickMath Series
• SumX – Number Pair Puzzle
• SumXMinus – Negative Number Training
• Common Divisor – Divisor Brain Training
• Exponent – Power Calculation Challenge
• Decimal Finder – Number Line Intuition
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Improved the Result View layout on certain tablet devices, including the iPad Air 11-inch.
* Fixed layout issues on the result screen
* Improved visibility of scores and buttons
* Enhanced overall user experience
The developer, Katsuhiko Yao, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Katsuhiko Yao
- Size
- 33.1 MB
- Category
- Education
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © Katsuhiko Yao