3000 examples in mathematics. Engaging tasks and challenging problems. With answers and explanations. Grades 3-4

The manual contains tasks on all topics of the mathematics course for grades 3-4. It includes non-standard tasks that expand the basic system of knowledge for first graders. The material of the manual will help students consolidate what they have learned, train their memory, develop logical thinking, and the ability to find correct solutions to difficult problems. When completing non-standard tasks, students practice establishing cause-and-effect relationships, constructing ways to solve problems, demonstrating not additional knowledge, but their level of independence. The difficulty level of all tasks is above the basic level, which is why they will serve as good training for those who wish to participate in school mathematics olympiads. The manual will also help teachers engage students who complete all types of tasks faster than others in the class during the lesson. For convenience, answers and explanations for tasks that may cause difficulties are provided at the end of the book. The manual can be used in class and for independent study at home.