What knowledge and skills do you really NEED in order to succeed in college math & stats?
Find out what BC post-secondary math instructors have to say at the Math Proficiencies page of the British Columbia Committee on the Undergraduate Programme in Mathematics.

Do you want to TEST YOURSELF? Use these to see if you are familiar with the material that various colleges and universities consider necessary for success with your calculus course.

Are You Ready for Calculus? - at the University of New Brunswick
Exercises in Math Readiness - from the University of Saskatchewan

(These sites may give you some idea of what to expect on Langara's Math Diagnostic Test, but of course their results cannot be used as prerequisites - you still need to take the MDT if you don't have the required recent BC high school grades for the course you want)