The "Reshebnik" (solution book) for the series by L. S. Fedchenko is designed as a universal, multi-level resource to support students through the core middle-school math curriculum. It is often used alongside the "Universal Multi-level Problem Book" to provide worked-out solutions and pedagogical guidance. Key Features
: Includes initial concepts (points, lines), triangle properties, quadrilaterals, area calculations, and trigonometry (sine, cosine, tangent).
: Designed for students aiming for advanced profiles (e.g., socio-economic or technological).
Quadrilaterals (parallelograms, rhombuses), area, similarity, Thales' theorem. Quadratic equations, inequalities, roots, fractions.
: The structure is organized by major thematic chapters and smaller paragraphs, making it compatible with any standard school textbook, such as those by Atanasyan or Makarychev.
Vectors, coordinate geometry, trigonometry (0–180°), circumscribed circles. Sequences, quadratic functions, systems of equations.
: The solutions are specifically aligned with the requirements for the OGE (9th-grade final exam) and provide a foundation for the EGE (11th-grade exam).
: Covers standard 7–9 curriculum topics including functions, equations, inequalities, and statistics/probability.
