Mathematics. Olympiad problems. Grades 5-7.

The proposed manual covers the main methods and techniques for solving olympiad problems of various levels of difficulty for students in grades 5-7.
The manual contains 750 problems divided into 50 sets for each grade. Each set includes 5 problems on different topics.
The problems presented in the book are dedicated to such already classic topics as divisibility and remainders, invariants, Diophantine equations, Dirichlet's principle, solving equations in integers, graphing functions, etc.
Answers and hints are provided for all problems, and solutions are provided for the most difficult ones. The majority of the problems are original.
The final part of the book includes interesting creative problems dedicated to numbers and numerical patterns, which are of increased interest not only to students but also to teachers.
The manual is aimed at students in grades 5-7 preparing for olympiads of various levels, mathematics teachers, university students, and tutors.