Maths. A large collection of tasks for lessons and olympiads with answers and explanations. Grades 1-4

Working with the manual will teach the child to analyze, reason, find non -standard decisions, prepares to participate in mathematical olympiads.
The manual contains non -standard tasks of different levels of complexity on all basic topics of the elementary school program - these are olympiad tasks of all types and types.
Each work consists of 5 - 7 tasks, which are evaluated in points. The points obtained are summarized and recorded the time spent on the completion of all tasks. If the student scored: 15-20 points and performed tasks for less than 20 minutes-this is an excellent result and, respectively, 1st place, 10-14 points and performed tasks of 20-30 minutes-a good result and 2nd place, 6-9 points and He performed tasks for more than 30 minutes-3rd place.
For all tasks at the end of the manual, either brief answers or detailed explanations of the solutions.
The manual can be used in the lesson at the school and for independent classes at home