Mathematics: Grades 1-4: All Rules

A new incredibly useful series - all the rules of basic subjects of elementary school under one cover and in the clearest and most concise presentation. The most important information from English and Russian languages, mathematics, and the world around us is presented here in colorful, memorable, and well-structured tables. The central part of each book is an easily detachable poster with rules, which you can hang on the wall - and it will always be in the child's sight.