CSN. CARSON DELLOSA PUBLISHING. Dry-Erase Flash Cards provide children a chance to practice the alphabet, numbers and counting, colors, and shapes in a flash! These silly monsters make learning numbers fun! From 0 to 25, your child will trace, write, and color numbers and have a great time completing the monster dot-to-dot and counting activities. The 32 dry-erase cards will provide countless hours of monstrously good fun for your child!