Algebra — Geometriia Samostoiatelnye I Kontrolnye Raboty 9 Klass Ershova

Includes independent (самостоятельные) and control (контрольные) works for both algebra and geometry in one book. Three Levels of Difficulty: Level A: Essential basics for passing grades.

Quadratic inequalities, the method of intervals, and inequalities with two variables. Functions: Quadratic functions and their graphs ( Progressions: Arithmetic and geometric progressions. the method of intervals

Start with Level A of any topic. If you solve it in under 15 minutes with no errors, skip straight to Level C to challenge yourself for the OGE. the method of intervals

These workbooks are often paired with "Reshebniks" (solution manuals). Use them only after attempting the work to check the logical steps, especially for geometric proofs. the method of intervals

Based on standard Russian federal curricula often tested in Ershova's works: