Button excavating is a simple sensory, digging activity for toddlers and preschoolers. A quick and easy indoor activity that's practically no-prep. Make sure to play with your child during this activity, as the buttons can be a choking risk.
I published a post about inexpensive and DIY sandpaper letters, with many ideas that work for sandpaper numerals as well as letters. Here I'll give resources specifically for sandpaper numerals and sandpaper-numeral presentations and extensions.
"On range" : une histoire pour aider les enfants à ranger