About this app
How many subtraction flashcards can you solve in 30 seconds? Subtraction Flash Cards helps you learn & master subtraction through a fun subtraction quiz by giving you a series of random subtraction equations to solve in a 30 second time frame. Over time your brain will get better and faster at subtracting with each subtraction quiz that you take. Whether you’re a 3rd grade math or 4th grade math student, teacher, parent or just someone looking to improve on your subtraction, this subtraction game is for you! So really, how many subtraction flashcards can you solve in 30 seconds? Take the subtraction Flash Cards quiz to find out.
Latest release
What’s New
-Updated to run efficiently in iOS 14 -Added the ability to opt out of personalized ads
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 27, 2026 · 11:21 AM Free