A free app for Android, by Quick Utility Apps.
Smart Maths Learning is a free, educational game that will help you improve your math skills. It is designed to be a fun learning experience that is easy to play and will help you stay focused.
The game consists of different levels that will test your math skills. Each level contains a set of arithmetic problems that you will need to solve. The solutions to the problems are not that difficult, so you should be able to solve them on the first try.
The game is designed to be simple and intuitive. You will only need to tap on the number to add, subtract, multiply, or divide. You will also need to consider the signs of the numbers.