Teaching math for children is one thing that every parent is very interested. Math is inherently very dry so sometimes when a child learns in class, he cannot absorb it all and mental math slowly. Inspired by that, we have researched and developed apps to play games and learn math for children. Focus on two difficult math problems which are multiplication and division. After completing the series of lessons, your child will be very confident to get the maximum score in math to help them easily absorb more new knowledge in the classroom. Now they can enjoy learning math and make effective progress with our app. Learning by playing makes children comfortable and not stressed after learning in class, reducing their useless free time. The combination of games and math helps children not only focus on the usual useless games. But also create excitement for children, they can just play the game but also learn many useful things, support fast brain development, help them more interested in math, not hate learning math. Special support for children who do not like math, slow calculations. Key features of the application: - In the app, there are 3 books. Mathematics 1, Mathematics 2, Mathematics 3. Each is composed of 30 mathematics lessons from easy to hard. - Follow the map of the lesson, children must complete the levels from easy to hard to go to far places and discover many new monsters and collect many beautiful cards. - Children will do multiplication and division when they make a mistake will appear as a guide for counting and selecting the correct answer. The case is a lesson that they did wrong 3 times will not be able to complete the lesson and they can not move forward. Children have to practice again until they finish the lesson before going on. - After your child finishes a lesson, they will receive a very nice lucky card to make up his collection to increase the fun when learning math. - Parents can see your child's achievements in the route map. After looking at the results, parents can know how many correct and incorrect sentences their child has achieved to improve their child's math.