About this item Fun and Engaging: An exciting math game suitable for ages 10 to 127, designed to improve mental math skills while providing entertainment. Enjoy playing solo or with friends and family. Award-Winning: Winner of the National Museum of Math's 2024 Steven H. Strogatz Prize for Math Communication and featured on Art of Problem Solving’s (AoPS) Holiday STEM Gift Guide. Made by two high schoolers who love numbers! Social Impact: Profits from sales contribute to donating games to The My Stuff Bags Foundation. Play It Any Time Any Place: Includes a deck of 52 cards featuring 100 unique combinations, a travel and pocket friendly plastic storage box, and a QR code for accessing helpful hints. Perfect Gift: Makes the perfect gift for kids, parents, adults, friends, and families. Printed in the USA on casino grade high quality cardstock.