: It is often used for home study or by tutors to reinforce school skills because of its clear explanations for adult-guided learning. Cons :
: The curriculum is typically divided into three parts, covering fundamental topics such as three-digit numbers, advanced addition/subtraction, and an introduction to multiplication and division.
: Parents and teachers on platforms like Labirint and Ozon praise the book for moving beyond standard drills to foster genuine mathematical interest.
