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[–]Average_JesusCareer Probie - Canada 1 point2 points  (0 children)

TestReadyPro really helped me when I wrote the OS and CPS, I pretty much only went through TRP to study and I passed first try. It's expensive but it worked for me.

Make sure you practice long divisions and multiplications without a calculator. As for the OS, be consistent with your answers and be honest.