AST / A guide to prepare for the OGE 2021 "Informatics. 20 training options"

20 options for exam papers in computer science - a manual for students in grades 9, which allows you to successfully prepare for the main state exam in the shortest possible time.

Each option is compiled in full accordance with the requirements of the state final certification, includes tasks of different types and levels of complexity for the main sections of the computer science course. The structure of all options is the same. Each of them consists of 2 parts and includes 15 tasks. At the end of the book answers to all tasks and a detailed analysis of tasks with a detailed answer with assessment criteria are given. The materials of the collection can be used for systematic repetition of the studied material and training in performing tasks of various types when preparing for the exam.