In the age of smartphones and tablets, it's hard to believe that paper and pen were ever used to solve problems. However, they were and still are the best tools for learning. In our app, we have created a special collection of flash cards with the problems and solutions in different mathematical fields. Our app is designed for children in the second grade. It helps them improve their mathematical skills and learn basic arithmetic. It can also be used for children in the third and fourth grades.

Our app is made for children, and we try to make the lessons as easy as possible.