The math gap is much larger in the United States than it is in Northern Europe. In general, gender inequality and poorer math performance by females are correlated. Moreover, over time, most of the gender gap has gone down. Most relevant study (although I do remember having reservations about some aspects of their methodology the last time I looked at that in detail, and I don’t unfortunately remember what they were.)
The math gap is much larger in the United States than it is in Northern Europe. In general, gender inequality and poorer math performance by females are correlated. Moreover, over time, most of the gender gap has gone down. Most relevant study (although I do remember having reservations about some aspects of their methodology the last time I looked at that in detail, and I don’t unfortunately remember what they were.)