I built this simple web application to generate multiplication worksheets and puzzles for my kids who have been busy memorizing their multiplication tables. I looked for something similar, but couldn’t find anything that quite fit what I was looking for. There is a form that allows you select with numbers to use when producing the tables and two different worksheet options.
Anyway, I threw this together using ruby, the Sinatra web framework, and the haml templating language. This is a pretty powerful toolset and I was very pleased at the ease with which everything came together. It’s deployed on heroku using git. You can browse the source code on github if you are curious.