3000 examples in mathematics. Grade 3. Account within 100. For excellent students

The manual contains 3000 mathematical examples on the topic "account within 100". The original construction of the material allows us to ensure its deeper assimilation.
As practice shows, the student fully mastered the program if he decides and records the answer after 4–7 seconds. In this case, we can say that the account skill is brought to automatism.
On each page there are 7 columns of an average of 40 examples.
At the end of the column, time is recorded. In the lower left corner, control numbers are indicated: the ideal time of solving one column, ugly-lifting and the result, which should make the student think about. To achieve excellent results, every day you should solve one page.
For students who previously completed the task, as well as for the most effective assimilation of the topic at the end of each page, complicated tasks are given - "bonuses"