10 Easy To Learn Number Coloring Pages For Your Little Ones: This is a list of the top 10 number coloring sheets that you can use to introduce numbering as well as coloring to your kid. Not a fan of coloring sheets but I could color them to hang up
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.
Counting and Measuring with Lego: Preschool Maths Game - Good way to visually compare numbers - I would suggest making the corresponding numbers (like 5 and 15 or 8 and the same color to help see the pattern relationship between the numbers and 15