This application is a game to rearrange numbers and symbols (+ - × ÷) to complete mathematical expressions. Because it is easy operation only with taps, you can play gymnastics while playing from small children to adults. At first it is a very simple matter, but you can customize the settings yourself if you get used to it. By choosing the four rules and changing the level of the problem, you can set a wide range from elementary school students' computed drills to intense muzu problems. Since it creates randomly, how big the number of problems is! No matter how you do it, a new problem will come up! (For the sake of automatic generation ※, too easy question comes out, please understand) Ten minutes a day, 10 questions a day, while commuting to school, let's train your brain in a short time. Let's let your friends challenge your difficult problems with the image with tweets ♪