Feel welcome to print this off to laminate and use with a black white-board marker.
It's free to use for non-profit teaching and cannot be sold.
I put this Gelosia or Lattice multiplication template on my fridge. Then I printed the digits below on fridge magnet paper.
BTW, I began working on a new and improved elementary number system and set of lesson ideas in the 1980s. The plan is to go live in 2020.
