This is what I meant - math advance level can be verified by IMO, USAMO, or even AMC 8 at young age. Not just saying someone is learning 8 level higher than his/her normal grade level.
This is what I meant - math advance level can be verified by IMO, USAMO, or even AMC 8 at young age. Not just saying someone is learning 8 level higher than his/her normal grade level.