The "GDZ" (готовые домашние задания) for by T.M. Erina , published by Ekzamen (Издательство «Экзамен») , refers to a series of solution manuals designed to accompany popular Russian textbooks like those by Zubareva, Mordkovich, and Merzlyak. Available Materials
Based on standard 5th-grade math curricula used in these manuals, the content focuses on: Comparison, rounding, and operations. gdz po matematike 5 klass erina izdatelstvo ekzamen
Addition, subtraction, multiplication, and division. the content focuses on: Comparison
Rays, segments, angles, and drawing geometric figures. and operations. Addition
The "Ekzamen" publishing house typically releases several types of manuals authored by Erina for this grade level:
Solving basic linear equations and working with variables. Usage Tips
Ready-made answers for test collections (e.g., those matching the Merzlyak textbook), which often include 7–10 tests in multiple difficulty levels.