This is a downloadable font that includes numbers 0-20 on tens frames. There is a horizontal version and a vertical version.
View and print the preview to see what letters on your keyboard correspond to the tens frames.
This file is a true-type font. Download, unzip, extract the files (very important), right click, and install.
You may not resale this font.
You may use it in printable products to sell.
Please credit Kat and Squirrel as creating the font.