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.
ROLL CROSS: What a fun and easy math game for kids of all ages! This is a perfect number recognition and counting game for toddlers and preschoolers. They will love playing with this homemade dice and racing to cross out the numbers!
This set has six hands-on centers for teen numbers in kindergarten. Great activities for math stations! These are good ideas to get started with teen numbers. The links with the number bonds might be super helpful.
Colored craft sticks are labeled with the number of sides each shape has, ie: 3 purple sticks - triangle. The children will choose a color and build the matching colored shape from the sticks. This can be a game using a timer.
Magnetic number fishing, they add what they catch! As well as addition, develops hand/eye coordination, fine motor--I love this for magnetic letter fishing too! When they catch a letter, they say its name and sound.