Multi-step transformations. Often involves simplifying a large rational expression before plugging in a value.
A standard "Vilenkin-style" control work usually lasts and follows a "graded difficulty" structure: kontrolnaia rabota 8 klass po algebre vilenkin
Simplifying complex fractions, addition/subtraction with different denominators, and solving fractional equations. Multi-step transformations
The "Star" problem. A high-complexity task, often a word problem (e.g., "Two trains leave stations A and B...") or an equation with a parameter. ✅ Grading Scale (Standard) Алгебра 8, Ю.Н. Макарычев. addition/subtraction with different denominators