Arithmetic textbook for elementary school

Here is a brief and affordable guide for studying the theory of arithmetic in grades 3 and 4. This is not just a collection of arithmetic tasks and examples, but an understandable instruction on how to add, subtract, multiply and share numbers and simple and decimal fractions, find the volume of a cube or area of ​​a triangle. Thus, the main goal of the publication is to accustom schoolchildren to accurate, consistent mathematical speech and give a compressed and convenient material for study.
explanatory illustrations help to better master the theory and remember the necessary rules, which for convenience are highlighted by bold font in each section. The main plus of the book is that it can be engaged in both the class along with the teacher and independently to repeat the topics studied.
The publication will be useful to both primary school teachers and parents who are engaged in addition with children