Students can complete an exercise and then check their work against the online reshebnik to identify mistakes immediately.

    Always try to solve the exercise on your own first. Use the GDZ only after you have a completed draft.

    If your answer differs from the reshebnik, don't just erase it. Find the specific rule in the Ladyzhenskaya textbook that explains the correct version.

    Mastering rules for vowels after sibilants and the use of the soft sign (