Are
You Ready for Calculus? - at the University of New Brunswick
Simon Fraser University has a
math skills test that you can practice, as does
Thompson Rivers University - try sections C and D.
Additional practice problems are
available on the University of Athabasca website. Use Section C to test your preparedness for Calculus.
A good preliminary review of Math 12 topics -- examples with solutions -- can be
found on the Math 12 Test section of the BCIT web site.
Another good source is
Exercises in Math Readiness
- from the University of Saskatchewan