: Check the cover of your textbook. Ensure the online version matches your book's year (e.g., 2013, 2016, or the newer "Prosveshchenie" editions), as page numbers and some problems may differ.
: The best way to use these is to solve the problem first, then use the GDZ to identify exactly where a calculation error might have occurred. : Check the cover of your textbook
: Since this textbook is usually split into three parts, online versions are organized by Part 1, 2, or 3 and then by Lesson (Urok) number, making navigation instant. or the newer "Prosveshchenie" editions)