The past papers typically cover mathematics and science topics for grades 1 through 12. While full, current versions are often hosted on protected platforms, you can find a variety of sample and national round papers through the following sources: Available Content & Topics
Arithmetic, Number Theory, Logic, Algebra, Geometry, Combinatorics. 30 MCQs + 5 Open-ended (75 Min)
: Biology, Chemistry, Physics, Earth & Environmental Sciences, and Space Sciences. Where to Find SIMSO Past Papers