30 000 primerov po matematike 4 klass - Uzorova O.V., Nefedova E.A.

The manual contains 30,000 mathematical examples on topics studied in the 4th grade, including examples for division with a balance. The original construction of the material allows for a deeper assimilation of the material.
As practice shows, the student has fully mastered the program, if he decides the example and writes down the answer after 4 to 7 seconds. In this case, we can say that the skill of the account is brought to automatism.
There are 5 columns of 47 examples on each page. If the student decides the bar for 5 - 7 minutes, it indicates a good level of preparation. It should take no more than 35 minutes for a whole page. To achieve great results, you have to decide on one page of examples every day.
The manual can be used in math lessons as well as at home.