SAT subject scoring confusion??

Hello ,
So I am going to take the sat math2 and chemistry on October.
I did some practice tests but I am confused as to how to correct them.

From some websites I read that you can only have 1 mistake in math 2 to get a 800 while other websites and Barron’s book said I can get as low as 44. Which is correct?
And for chemistry how many questions can I get wrong and still get 800?

Please support your answers by previous sat subject attempts or other trusted sources.

Thank you in advance

It varies by subject and by exam date. Nobody here knows what the curve will be in October. Answer all the questions correctly to guarantee yourself an 800. :slight_smile: Good luck!