DONE -Challenge problems - Yr 4-5.
Problems from first few chapters of First Steps Olympians book - Yr 7+.
Problems from Mathematical Miniatures book - Yr 11+.
Mixture of C-S inequality, Diophantine equations and summation/factorisation puzzle - Yr 11+.
DONE -Variety of problems
DONE - Various algebra exercises - mainly exponents/logs.
DONE-Various problems, mostly from AMC
DONE - Various problems on all subjects
Not the best - cleanup needed
DONE - Functional equations plus some inequalities
Number theory questions
QLD practice paper