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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 and contains enough tasks for self-control and consolidation of the material to develop both types of thinking - reproductive and productive. In addition to cognitive tasks, the textbook also contains many exercises to develop logic, intelligence and attention. The tasks in the textbook are close to the child's daily life and sphere of interest, which will help the child understand where to apply the acquired knowledge.

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