Set of 100 Brain Training Games Cards for Ages 9 to 99 - 50 Reusable Cards

The set includes 50 double-sided reusable cards with engaging tasks and games aimed at developing abstract, logical, spatial, combinatorial, and creative thinking, attention, and memory, suitable for children aged 9 and adults.
Solving mathematical and creative problems, sudoku, riddles, and puzzles... of varying difficulty stimulates brain activity, increases IQ, and serves as a prevention for Alzheimer's disease.
By working with the cards, you will develop: • mathematical thinking and creativity; • interest in mathematics; • resourcefulness and quick thinking; • attention and memory; • brain productivity. What you will find inside: – 50 double-sided reusable cards; – Water-based marker.
Important information for parents:
The card set is intended for children from 9 years old and adults up to 99 years old.
Recommended for playing in company and with the whole family at home and on trips.
Any water-based marker that easily wipes off the special surface of the cards is suitable for use with the set.