A clean, beautifully designed A4 educational mathematics worksheet for Grade 6 olympiad math, printable layout on a white paper background. The title at the top reads in Russian: 'Блок 4. Олимпиада: Шестерёнки, циклы и круговое движение'. The page is neatly organized into three distinct visual exercise sections with clear technical line-art diagrams and typography: 1. Task 10 diagram: Two intermeshed mechanical cogs/gears with visible teeth, labeled '36' and '54', with distinct red indicator dots at their touching point. 2. Task 11 diagram: A linear chain of three meshed gears labeled A (20), B (28), and C (35) with a curved rotation arrow over gear A. 3. Task 12 diagram: An athletic circular running track labeled '600 m' with a start flag and two stylized runner icons moving around the circle with speed labels '15 m/s' and '10 m/s'. Clear Russian problem descriptions, neat numbered bullet points, subtle grid/ruled area for solutions, modern educational textbook layout, crisp vector-style illustration, high resolution, minimalist and sharp.
