: Part of the "Planet of Discovery" ( Planeta Otkrytiy ) series.
(ГДЗ по русскому языку 3 класс ТПО) refers to "Ready Homework Assignments" (GDZ) for 3rd-grade Russian language Workbooks (TPO stands for Tetrad dlya Prakticheskikh Opytov or simply Tetrad na Pechatnoy Osnove —Workbooks on a Printed Basis). gdz po russkomu iazyku 3 klass tpo
According to YaClass and ReshUтка , students use these workbooks to master: : Part of the "Planet of Discovery" (
