Some younger students prefer to play SUM OF WHICH alone. They make sums of ten repeatedly. It's just fun when you can have the whole board to yourself.
Playing SUM OF WHICH IS ONE is a great way to practice addition of fractions without it feeling like practice. These students got some review without knowing it.
This game is wonderful for centers. Students who may need more time practicing making sums of ten, twenty, or one-hundred can do this and they don't feel the dread of practice. These two had a great time practicing.
SUM OF WHICH is also a great game for home. Children love to play and these two even complained when they were told they had to stop playing.