Rapid Calculation
| Category | Price | Seller | Device |
|---|---|---|---|
| Entertainment | Free | xiaohui qi | iPhone, iPad, iPod |
FEATURES
- Plus and minus calculation
- 3 Number digits available
- 3 Demonstration Speed(Slow, Normal and Fast)
- 5, 10 or 15 Questions to choose
- 3 kinds of Show Mode
It is simple but functional and easy to use.
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Reviews
Practice but no instruction
Lawyer in nj
I was looking for an app that teaches rapid mental calculation (all in your head using no paper). This app doesn't help you learn that skill, but if you already know how to do mental math then you can practice with this app. At least it's free. Oh and the flashing numbers are kinda stressful and seem like they could give someone a seizure.
