This book consists of four chapters: Tables - Linear Systems - Combinatorial - Probability, which are also the material of the new syllabus for the 4th batch. It was considered appropriate for didactic reasons to make Syndnyastica a separate chapter, to refer to exercises in mathematical induction and to use two types of symbols in the grammars.

The book presents a functional originality that lies in the concise listing of the exercises, the necessary methodology, the group of elementary - basic exercises and the multitude of solved exercises whose difficulty is characterized by none, two three or four asterisks.

At the end of the 4th chapter are contained all the topics of the last decade that are mentioned in entrance exams of Greece and abroad that concern the relevant material.