Offers detailed solutions with explanations and theory summaries for 7th and 8th grades.

Popular platforms like Skysmart and GDZ.ru are generally vetted for errors. However, because Vilenkin has several editions (including specialized school versions), it's crucial to match the year of your textbook to the GDZ version to avoid mismatched numbering. Community Perspectives

While is famous for his 5th and 6th-grade mathematics textbooks, his Algebra series for grades 7-9 (co-authored with A. N. Vilenkin, G. S. Survillom, and others) is less common than the standard Makarychev or Mordkovich versions.

Often used for more difficult, specialized math problems common in Vilenkin's advanced curricula.