Using a spaced repetition system for math has never worked well for me. It's useful for memorizing mathematical facts (for example, the mean/variance of various statistical distributions), but over time my intuition will fade, and I'm left parroting facts, having lost the understanding of why they are true.
In my experience, spaced repetition systems excel when I can create cards that take 10 seconds or less to answer. So they work really well for something like language learning. But it's difficult to reduce mathematical arguments into 10 second chunks．
In my experience, spaced repetition systems excel when I can create cards that take 10 seconds or less to answer. So they work really well for something like language learning. But it's difficult to reduce mathematical arguments into 10 second chunks．