This collection includes approximately 1000 interesting word problems, the acclaimed author of manuals for M. V. Bedenko elementary school. All tasks are systematized in accordance with sections on math program for grade 4. The main purpose of the collection - to give the job to support and testing of computer skills, algorithms for solving typical problems and consolidate the knowledge and skills that will be required for students in the future. When drawing tasks, the author used fairy stories, interesting facts about the history and everyday life, information about plants and animals. All this helps to make the process of problem solving is not just not dull and makes it interesting and cognitive. The manual is intended for primary school teachers, parents and students. This book was created using print-on-demand technology.