I found this task I made about 10+ years ago. It’s a snakes and ladders game where you roll a dice (soft dice are great) and substitute the value into the expression. I don’t really like the task now but it was still on a ppt I had for substitution and the students spotted it and wanted to play. So I printed it and they played it next lesson. I decided I wanted to update it and so I made the task further down. I also used a MCQ sheet for practice too.