It looks like you're searching for study aids or "GDZ" (готовые домашние задания) for the textbook by L.Y. Zheltovskaya and O.B. Kalinina .
Try to solve the exercises on your own before looking up the answers. It's the best way to actually remember the rules. spishi.ru russkii iazyk 3 klass zheltovskaia
Parts of speech (Nouns, Adjectives, Verbs) and their basic inflections. It looks like you're searching for study aids