Sesame Street My First 123's Deluxe Wipe Off Activity Cards Boxed Set. Help your children learn by having them say the number out loud as they or trace it with their fingers. Play a sequencing game, mix up all the cards and have your child put them in order. Count to 10 or 20 by twos. Teach your child simple math by using the learning cards to add. Use the soft cloth to wipe the cards clean. Includes: 25 activity cards, 3 wipe-off markers and cloth.