I think you could also have multiple pipe cleaners coming from one number and students have to show multiple ways to add numbers to get to that number. Counting with pipe cleaners and beads. Great for fine motor development too.
"Guess the Number" Kids ask questions like "is the number greater/less than___?", "is the number between ___ and___?", "is the number in the tens place___?", "is the number to guess the selected number.