Learn to calculate with numbers up to 20 or 100. Task that you haven't solved, will be repeated after a while. This app is reduced to only some features, to focus on learning at all.
- smaller fixes
9Apps 4.9
![STAR GIRL CALCULATOR [REVIEW]: 99999999999999999 x (1234567890 + 1234567890) = ??? screenshot 5](https://i.ytimg.com/vi/Yx-fDe2E8TY/mqdefault.jpg)
