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The textbook was created in accordance with the current Mathematics Programme for Primary School. It is an innovative textbook that uses the ideas of developmental teaching methods. It is richly illustrated, filled with fun game plots, which increases students' motivation to learn.

The textbook consists of three parts, contains enough tasks for self-control and consolidation of the material, for the development of both types of thinking - reproductive and productive. In addition to cognitive tasks, the textbook also contains many exercises to develop logic, intelligence and attention .

For fourth grade students of secondary schools, gymnasiums, as well as for teachers, methodologists and parents.