Community college is college in terms of academic expectations – fewer class hours, but more expectation that you will manage your own time and be self-motivated to do the readings, assignments, and projects without the teacher helicoptering you like in high school.
You can get excused from remedial math by learning math well enough to pass the placement tests. Here are some sample placement tests to help you determine where you are with respect to math:
http://www.math.buffalo.edu/rur_index.html
http://math.tntech.edu/e-math/placement/index.html
https://math.berkeley.edu/courses/choosing/placement-exam