Practice problems for enrichment students preparing for Grade 7-8 math contests. Style matches the CEMC contests at the University of Waterloo (Gauss for Gr 7-8). Problems are original, but in the spirit and difficulty level. Pick a level; each problem has multiple choice and a solution walkthrough.
Run by the Centre for Education in Mathematics and Computing at the University of Waterloo. Free or low-cost school registration. Grade-level contests: Gauss (7-8), Pascal (9), Cayley (10), Fermat (11), Euclid (12). Format: 25 multiple choice problems, 60 minutes, calculator allowed but not required, no penalty for wrong answers. See cemc.uwaterloo.ca.