Mathematics of Zavrika. Grade 4. Collection of Engaging Tasks

This notebook is a prize for those who participated in the "PLUS" Olympiad or the "Dino" Olympiad, and for everyone who loves to think and solve tricky math problems. In this notebook, you will find problems similar to those from our Olympiads. There are also new problems that you may not have encountered before. Perhaps even adults will not be able to solve all of these problems and find all possible solutions.