One student throws a ball. They fill the tens frame with the number they landed on. The other student needs to figure out how many more is needed to complete the tens frame. Then write the number sentence on the board.
Here is a free printable snowman number game that you can play with your kids. There are 4 different game boards so that you can play at many levels. This is a great winter-themed math game or activity to play with kids in preschool, pre-k and kindergarten.