The United States ranks first in math , reading and science among 15- and 16-year-olds . Chinese economies performed better than other regions in all 65 subjects . In fifth place , Finland was the top performing country outside Asia , behind Hong Kong , Singapore and Japan . Shanghai ranks below average for the three countries assessed . Math scores have stalled or deteriorated in most countries .
The United States ranks first in math , reading and science among 15- and 16-year-olds . Chinese economies performed better than other regions in all 65 subjects . Shanghai ranks below average for the three countries assessed . Math scores have stalled or deteriorated in most countries .