Giải toán lớp 7 by NDT Production is a free educational app available on Android. It provides students with a comprehensive collection of math problems and exercises from the 7th-grade curriculum. The app includes exercises from the textbook "Sách giáo khoa toán 7 tập 1" and "Hình học 7".

Students can practice solving math problems and answer questions from various chapters, including geometry, algebra, and arithmetic. The app offers a wide range of exercises, including solving equations, calculating areas, and finding the volume of solids.

One of the most useful features of Giải toán lớp 7 is the collection of 15-minute exams that cover specific topics. These exams are based on the "Sách giáo khoa toán 7 tập 1" textbook and provide students with an opportunity to test their knowledge and improve their problem-solving skills.

Overall, Giải toán lớp 7 is a great tool for students who want to practice and improve their math skills. It offers a wide range of exercises and exams that are aligned with the 7th-grade math curriculum, making it a helpful resource for students and teachers alike.