Thirty complete papers on the SOF olympiad blueprint, written one question at a time. Timed like the real thing, and every wrong answer tells you which mistake it came from instead of just turning red.
The first 5 questions of any paper are open to everyone. A free account opens the rest.
Grade 5: 50 questions in 60 minutes, 60 marks. 15 Logical Reasoning, 20 Mathematical Reasoning, 10 Everyday Mathematics, then 5 Achievers worth 3 marks each.
Grades 5 to 8 follow the senior blueprint.
Every question is written by hand, not generated. Each one carries the insight a solver could miss, and a separate check that recomputes the answer by a different route than the explanation takes. That second route is what catches a wrong answer key before a child ever sees it, and it caught two of ours.
The wrong options are not padding. Each one is the answer you get from a specific mistake, and the paper tells you which mistake that was. Knowing you halved when you should have doubled is worth more than being told the answer was 24.
Preparing for a named competition? The junior papers follow the same shape as Math Kangaroo, and grades 6 to 8 overlap heavily with AMC 8.
Start with grade 3 paper 1, or pick the grade your child is in above.