We thought we'd lost this math game in the move. I found it today, oddly enough, stashed in one of my scrapbooking containers. The girls were overjoyed and Gloria yelled, "My birthday present!" She got this a couple of years ago for her birthday.
Actually, a lot of the girls' gifts for birthdays and holidays are educational gifts now that we homeschool. They don't mind and we get much more use and enjoyment out of them than they do out of a toy that gets cast aside within a few weeks and forgotten about. This game uses addition and subtraction, but we are thinking up ways to use it for multiplication and division, too. Sum Swamp is fun, easy, and I love that it counts for homeschooling while giving us a rest from worksheets.