Agreed. I don't personally miss missions themselves, but I really do miss the 'World of Math' completion percentage. It is a goal of mine to complete all the math on Khan Academy, and the easiest w...

1. Közösség
2. Feature Requests and General Site Feedback
3. Please keep the World Of Math or create a replacement for this mission

Just wanna bump this, please add discrete math!!!    

1. Közösség
2. Content Requests and Feedback
3. The Addition of Logic and Discrete Mathematics