3000 examples in mathematics. Super -training. Chain of examples. Three levels of complexity. Grade 2

The manual will help to form account skills on basic topics of the second class: “Addition and subtraction in the range of 100”, “Addition and subtraction of round numbers”, “tabular multiplication and division”.
The manuals include tasks of three levels of complexity: 1st level of complexity - calculate the answer, 2nd level - solve examples for a while, under the posts the time is indicated for the solution of all examples of this level:  - excellent result,  - good ,  - it is worth it to practice more, the 3rd level is to insert the number missed in the example.
Solution of the chain of examples is an effective training that allows you to bring to automatism the computing skills of the child. Automated account skill will help save precious time when solving problems, long examples, inequalities and equations. In addition, an automated account will develop memory, logical thinking, flexibility of the mind and quick wit in the child, and also significantly increase the brain performance - activates the development of speech and intelligence, the ability to retain and switch attention.
The manual will be useful for working in the classroom and independent classes at home