I just found this one on Pinterest and love it! I wish I could find the website that features this idea but when I click on the pinterest post, it just opens another pinterest window.... So to whoever thought of this idea... Thanks!!
Cube Toss - These two trays are ice-cube trays from the Dollar Spot at Target. Write two digit numbers on labels and put them on each ice cube hole. Kids toss two cubes, one into each tray. They add the two numbers together on a recording sheet or whiteboard.