ヌンティー・ディーエスクローネルセントレーナー数学クラス6（欧州）（英語、ドイツ語）is a Nintendo DS game in Europe, developed by Cornelsen Verlag GmbH. It is a math training program for sixth grade students in Germany and Austria. The game is designed to help students learn the basics of mathematics and improve their math skills. It includes a variety of activities, such as solving equations, understanding fractions, and solving word problems. The game also includes an interactive tutorial and an assessment system to help players improve their skills. In addition, it features a multiplayer mode, where two players can compete against each other. The game also includes a variety of mini-games, such as a memory game, a quiz game, and a time-management game. With its fun and engaging activities, Cornelsen Trainer - Mathe - Klasse 6 (Europe) (En,De) is an excellent way for students to learn math and have fun at the same time.