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.
Top 21 Free Printable Number Coloring Pages Online
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
Missing Numbers Clip Sticks is a fun math activity. Create number lines with one or two numbers missing on lollipop sticks.add the missing numbers to a peg and the pupil can indicate their choice to place in the gap.