A practice app for addition and multiplication. The app design is very friendly, you can set the difficulty of the questions, the number of questions and the types of questions. You can choose the difficulty of the questions according to your level. You can see the correct answer every time you finish answering the question, so that you can correct your mistakes in time. In answering questions, you will unknowingly improve your calculation level.
Contact us:khunt.roh@icloud.com