This book is aimed at students of economics who want to prepare specifically and effectively for exams in mathematics and statistics during their foundational studies. Exam questions have their own specifics: they are neither too easy nor overly labor-intensive. This book responds to the often-expressed desire of students for such problems by providing a wide range of posed problems, original exam questions, accompanying solution hints, and fully worked-out solutions in a comprehensive manner. The fourth edition is characterized by the inclusion of a chapter on descriptive statistics and a brief chapter on common mistakes. Additionally, three recent exams along with their model solutions have been included in the book.