Big Addition can help you improve your problem solving speed and accuracy for multi digit addition problems.
If you need a refresher, there is a step-by-step problem solver in the practice area that can read-out the solution to you a step at a time. (Text-to-speech support required.)
Larger, more difficult, problems are unlocked by solving smaller/easier problems.
You can analyze your problem areas with both numerical and color-coded display of your results.
Stay motivated by setting and beating your fastest times.
Find your best rhythm by turning off/on any combination of verbal, sound, and vibration feedback.
This is a free-to-download, ad-supported app.
Thanks for any support.
MATH Domain Development
Latest Version
1.0.9Uploaded by
Nguyễn Phước Thạnh
Requires Android
Android 5.0+
Category
Free Educational GameContent Rating
Everyone
Security Report
Check Now
Report
Flag as inappropriateLast updated on Sep 6, 2025
(1.0.9)
+ Updated target API to Android 15 (SDK 35): Added support for Predictive Back Gesture.
+ Dialog shown after an error occurs when setting up Verbal Feedback now gives the options to Retry Setup, Keep Off, or Use Sounds.
+ Addressed several deprecations regarding sound and verbal feedback.
+ Bug fixes.