Disclaimer: I graduated from one of the top math high schools in Moscow in early 90s, I have MS in Math from Moscow State University, and a half finished PhD from the same place. I think on average the difference between a high school student from Russia and US is negligible. Either country doesn’t really require much to finish school and many kids just do the tests without understanding what is going on. What separa…
I don't think so, compared to the difference between the US and my country (which is western but closer to USSR/Russia regarding math curriculum). I think you overestimate what the average US high school student learns...