This book contains all the material for Mathematics of the 3rd Grade of Junior High School, divided into sections, just like in the school textbook.

Each section includes:
- The theory
- Solved exercises
- Useful remarks
- Exercises for solving
- Comprehension questions

At the end of each chapter, there are general exercises and evaluation criteria.
At the end of the book, there are the solutions to all the exercises and comprehension questions of the book.