5 smart books with tasks

Books, tasks for leisure time, a book with 500 tasks for children from 5 years old, safe, others slightly for older but already smart children quickly understand everything. One of the books is like new, in some, children tried to guess something, in the book with 500 tasks, at least half is still to be completed.

So as not to sit idle, these books greatly help children develop their minds during free moments.

Perfectly suitable for both 9-year-olds and also 11... I think for any age.