I think you’ll really like this set of print awareness strips with 10 number words. You can pass these out to your kids individually or as a set on a ring. Kids read the number words (if they can) and then count how many letters are in the words. They use a dry erase marker to write how many letters in the box. Of course, the kids get the fun of wiping all their numbers off!
It is recommended that you print these on card stock and laminate them.
Please check out this page to see all the worksheets, word strips, and pocket chart sorts in this set.