"Mathematics" is a general scientific publication that examines the fundamental principles and applied aspects of mathematical sciences. The book will help the reader to master arithmetic, geometry, algebra, trigonometry and other components of mathematics step by step. The author explains in detail not only the theoretical provisions, but also guides the reader through a large number of examples and exercises that help consolidate knowledge. The book "Mathematics" will be a reliable helper both for students studying mathematics at school and for everyone who wants to develop their mind and analytical thinking.