The hit teaching material that has sold over 2.5 million copies has been turned into game software as "Daizen"! A total of 3,000 math puzzles for children and adults to learn while having fun. There are two modes of play. One puzzle per day In this mode, you can challenge a scored puzzle only once a day. You can also get a certificate according to your total points for a month. You can also get a certificate depending on your total points for a month. Aim for a high score and keep challenging every day. Anytime Lesson In this mode, you can play puzzles at any time and for as long as you like. There are five types of puzzles: "addition," "multiplication/subtraction," "multiplication," "multiplication/division," and "four rules. Keep challenging yourself with puzzles that gradually get more difficult. From elementary and junior high school students in compulsory education to adults who want to exercise their brains, please enjoy this math puzzle game that can be played over and over again!