This book is a complete aid to the school book "Mathematics Grade 4".

Each chapter contains:
- basic theory written in a simple, concise, and systematic way,
- solved exercises covering all the basic categories of the chapter,
- methodology for solving the exercises and observations highlighting points deemed necessary for better assimilation of the theory,
- suggested exercises for practice, giving the student the opportunity to consolidate new knowledge while also developing their mathematical and logical thinking,
- an evaluation criterion for assessing the student's knowledge, as well as activities that sharpen the mind.

The notes titled "To the Parents" at the bottom of the book's pages aim to support parents' efforts to effectively help their child cultivate a positive attitude towards Mathematics.

At the end of the book, there are answers to the exercises and problems of this book as well as detailed solutions to all the exercises and problems of the school book (student book - workbook).

(from the author's preface)