Сложение и вычитание в пределах 20. Задания с визуальной инструкцией. 7+

Each book in the "Smart-start" series is a system of tasks and exercises aimed at developing a specific cognitive skill.

The bright and interesting tasks of the "Smart-start" series are designed with an emphasis on visual instructions, allowing the child to easily (naturally) understand and complete the exercises without adult assistance.