Mathematics. 4th grade. The simulator is classic

The simulator as an original textbook fully corresponds to the school program for teaching mathematics. It is intended for the formation and consolidation of elementary mathematical knowledge, for the development of automatic skills of proper work with numbers. The use of the simulator allows you to understand and effectively use the algorithm of any topic being studied, and a sufficient number of simple and understandable examples and tasks contributes to the qualitative assimilation of the material.
The simulator can be successfully used both during the educational process and to control the work performed.
This textbook will undoubtedly be very useful and will significantly enhance the effect of learning