Platforms like InternetUrok provide thematic breakdowns and practice tests.
Hard and soft signs (ъ, ь), spelling of unstressed vowels, and consonants in roots. t g ramzaeva russkii iazyk 3 klass upr
Nouns, verbs, and adjectives—learning their gender, number, and basic cases. spelling of unstressed vowels
If you are looking for specific exercise answers or digital versions: and consonants in roots. Nouns
Inserting missing letters or suffixes to practice spelling rules.