I finally found time to make these little cuties with my firsties.  We have been working so hard on learning our doubles facts that I wanted them to have a little extra fun by making this mathtivity.  Plus it provided another avenue to get those facts memorized.  I enjoyed listening to the ‘double conversations’ my kids were having as they worked on their doubles monster.  I must say they also make a darling display on our math bulletin board.  I found this activity {here}.