This book is aimed at students as well as educators. It includes the material of the new school book, providing a detailed theory of the mathematics of this class and exercises aimed at understanding and consolidating mathematical concepts by students. At the end of each thematic unit, there are summaries of theory and exercises from the preceding units, as well as evaluation criteria. It contains the solutions to its exercises as well as the solutions to the exercises in the school books (workbook and student book). This book helps students understand and clarify mathematical concepts in order to smoothly transition to Junior High School.