Mathematics. 1-4 class. A big book of examples and tasks on all top -school top topics

Here is a unique manual for schoolchildren"s education skills. It combines examples and tasks on all topics of mathematics for elementary school.
The manual contains 16 sections, each of which is devoted to a separate topic. The section consists of three parts:
- examples for working out speed skills. The page shows 3-5 columns on average 35 examples. At the end of the column, the time spent by the student on the decision is recorded. In the lower left corner, control numbers are indicated: the ideal time of solving one column, satisfactory and the result that should make the student think about. As practice shows, the student completely learned the topic if he decides an example and records the answer within 4-7 seconds. In this case, it is believed that the account skill is brought to automatism.
- control and verification work. With their help, the teacher will quickly appreciate the skills of calculations received by students and identify "weak" places.
- Logical examples. The implementation of these tasks develops logical and mathematical thinking, memory and attention. At the discretion of the teacher, examples can be used both for olympiad and tasks of increased complexity, and for repeating and consolidating the topic.
The manual is recommended as additional material in mathematics lessons, as well as for homework