Excellent App
Love this app. Simple and clean to practice addition and subtraction of negative numbers. Love the no frills approach. Dark mode great, would benefit from ability to increase text size which would make it more accessible. Thanks!
Free
About
This educational game helps users practice adding and subtracting positive and negative numbers using an interactive number line. It visualizes solutions and tracks progress, offering customizable equation types and display options for clarity.
✓Interactive number line visualization
✓Practice addition and subtraction
✓Supports positive and negative numbers
✓Customizable equation types
✓Progress tracking
✓Visual and haptic feedback
Show original description
+1
What's New in Number Line
1.6.1
November 4, 2026
Number Line now built for iPhone Duo! Don't have a Duo? The app now adapts well to any size screen or window! • Resizable windows on iPad, and landscape on iPhone • The number line grows or shrinks with the window, showing more numbers on wider screens • Choose the app's language from the Settings app ("Change Language" in Preferences takes you there) • Improved Spanish translations, and percentages now follow your region's format
MoreUser reviews
Developer apps
FAQ
What is Number Line: Add/Subtract Game?
Number Line: Add/Subtract Game is a free educational application designed to help users improve their skills in adding and subtracting positive and negative numbers through interactive gameplay.
How does Number Line: Add/Subtract Game help with learning?
The app uses a visual number line to demonstrate solutions for addition and subtraction problems involving integers. Users can tap on the number line to select answers or drag a selector to visualize the movement.
Can I customize the types of equations I practice?
Yes, the preferences in Number Line: Add/Subtract Game allow you to control which types of equations you encounter, including addition or subtraction of positive or negative numbers.
Does Number Line: Add/Subtract Game track my progress?
The game tracks the number of equations solved by type and the number solved correctly on the first attempt, allowing you to monitor your improvement.
Is Number Line: Add/Subtract Game available on multiple devices?
Yes, Number Line: Add/Subtract Game is supported on both iPhone and iPad devices.
What is the age rating for Number Line: Add/Subtract Game?
The app has an age rating of 4+, making it suitable for young learners.
How often is Number Line: Add/Subtract Game updated?
The latest version of Number Line: Add/Subtract Game is 1.6.1, and it was last updated on November 4, 2026.
Does Number Line: Add/Subtract Game have ads?
No, Number Line: Add/Subtract Game is ad-free, providing an uninterrupted learning experience.
