But I've tutored some people that made me believe that, for some, math is outrageously difficult. They put in a ton of effort but don't seem to grasp it.
I have to spend most of the tutoring time trying to approach the problems from different angles and through analogies just to get them to teh point where they can pass.
The thing is, in other pursuits these were often very intelligent people. Tehy just had a blind spot when it came to math.