Question

What's the math really needed for computer science (headed at software)? What's the best option to self-study it online?

"really needed" means that is absolutely necessary to take any further CS course without having problems understanding the math involved
(e.g. algorithms, cryptography, computer vision, etc..)

right now my best bet is:
k-12 math (khan academy)
single variable calculus (mit ocw 18.01)
linear algebra (mit ocw 18.06)
probability and other discrete math for CS like proofs, logic, graphs, etc.. (mit ocw 6.042 with no videos, harvard csci e-120 with tuition)