OGE-2021. Maths. Grade 9. 40 tests for the new demo + task book to part 2

This manual is intended to prepare for the final certification in mathematics in grade 9. It contains:
- 40 tests according to the plan of demo version of the OGE 2021, taking into account all the changes for September 1, 2020,
- a selection of additional tasks of part 2.
Note that all tests of the benefits are similar- test- test No. 2 is similar to test No. 1, test No. 4 is similar to test No. 3, etc.
Simultaneously with this manual, a solver is released that contains solutions to tasks with a detailed answer for each second test, as well as solving problems with odd numbers from the task book.
regular classes on this manual will allow the student to not only successfully prepare for the final exam in mathematics in grade 9, but will also help to develop mathematical skills and significantly increase the level of mathematical literacy. And this, in turn, will provide invaluable assistance in the future training - regardless of the chosen college or university and the chosen specialty