Mathematics. 7th grade. Knowledge correction cards

Knowledge correction cards cover key questions in mathematics on the corresponding topics of algebra and geometry provided by the school curriculum for 7th grade. Each card is dedicated to a separate question and consists of three parts: instructions (formulation of rules), an example of applying this instruction, and three sections of tasks for students.
The cards are intended for additional classes with students (in the classroom and at home).
If a student correctly completes the first of the three sections of tasks during such a class, that is sufficient. If the student cannot do this, the teacher should explain the material to them and give them a task from the next section. If the student is unable to complete this task as well, the explanations continue and the remaining tasks are solved.
2nd edition.