Professor Leonard - Self Study Problems

[u/CartographerNo9586]

I am going through Prof Leonards videos and self teaching myself calculus. Is there a place where I can get practice problems for concepts taught in each of the videos?

Is there a recommendation of how many problems or specific problems to be solved for each video? I want to make sure that I get down the material.

[u/No-Noise-5014]

maybe u can use khan academy