It seems you are looking for past papers for the Singapore International Mathematics Olympiad (SIMO), but there might be a slight typo in your query ("simso" vs "simo").
The Singapore International Mathematics Olympiad (SIMO) is a prestigious competition designed to identify and nurture mathematical talent in students. It is distinct from the standard PSLE or O-Level math papers.
Here is a guide on how to find these resources and what to look for: simso past paper
To get the best results, you should correct the search term:
Typical past paper quote: "A 58-year-old male with crushing chest pain. His ECG is shown on the screen (examiner holds up a printed strip)." It seems you are looking for past papers
How to prepare: Past papers love STEMI mimics (early repolarization, pericarditis, left bundle branch block with Sgarbossa criteria). Practice the phrase: "I am applying the four-step STEMI algorithm: 1) Is there STE? 2) Is it contiguous? 3) Is there reciprocal change? 4) Does it meet STEMI criteria?"
Typical past paper quote: "A 22-year-old male brought in by police. He is shouting, restless, and appears to be sweating profusely. His friends say he took 'something' at a rave." This is the step most students skip
How to prepare: Past papers test the differential for agitation (hypoglycemia, hypoxia, intoxication, withdrawal, psychiatric). More critically, they test de-escalation language. Practice saying: "My name is Dr. X. You are safe here. I am not here to hurt you. Can you tell me what you see around you?"