Criss-cross puzzles are the new hit puzzle type. With interconnected grids, they provide a unique and inventive way for children to improve their math skills.

This vibrantly illustrated, ingeniously designed book transforms adding and subtracting into a game that young readers will love. As they solve the puzzles, kids will be boosting the speed at which they can solve simple problems, and supercharging their mental math ability. It even includes a fun fact on every page, linked to the full-color illustrations.

Providing invaluable screen-free time and endless entertainment, this activity book aims to bridge the gap between play and formal learning.

Perfect for kids aged 5+.