They don't have exercise for some of the more advanced college level topics. You can see the exercises on the right side of the screen under "practice" for some

They don't have exercise for some of the more advanced college level topics. You can see the exercises on the right side of the screen under "practice" for some of the more introductory topics: https://www.khanacademy.org/math/linear-algebra/vectors-and-spaces#vectors https://www.khanacademy.org/math/linear-algebra/vectors-and-...