The Ultimate Guide to Hands On Toddler Activities - Brittany Estes--- This could also work for pre-math skills. Which shape has more or less? I would put on magnets on the back and have a magnetic work space for them to do this activity!
Ice Cream Numbers - preschool summer math that explores fine motor skills, counting, one-to-one correspondence, and more early math skills
Sticker Names Toddler Activity works on name recognition, letter identification, and fine motor skills, such as pincer grasp and manipulation of other digits of the hand to peal and place stickers on the letters of their name.