Leaked A-level grade boundaries have revealed students who get 55% in their maths exam will qualify for an A.
The grade boundaries have been leaked the day before sixth formers across England, Wales and Northern Ireland are due to receive their A-level results.
Documents also show that this summer, 43 marks (14.3%) would result in an E grade – considered a pass.
Grade boundaries for Edexcel’s maths A-level show that 165 out of 300 marks were needed to achieve the top grade.
Last year, 184 marks (61%) were required for the same result.
The leaked boundaries also show that 72% of marks were needed overall for an A* in the maths A-level this summer, along with just over a third of marks (34%) for a C grade.
The figures relate to overall Edexcel grade boundaries for the new specification maths A-level.
Maths is one of the last subjects to be reformed as part of a major overhaul of exams in England.
This summer is the first time that grades for new specification A-level maths are being awarded to the vast majority of students.
Last year, just a small number of students took the reformed qualification – those who sat the exam after completing the course in just one year, rather than the usual two.
A small number of students may still be studying the old “legacy” maths A-level course.
The leaked documents also give grade boundaries for all other Edexcel A-level qualifications.
Edexcel is one of England’s largest exam boards.
In a statement, Pearson, which is responsible for Edexcel, said that grade boundary information is shared with schools a day in advance to help teachers prepare and that the information was shared via a password-protected, secure website.
A Pearson spokeswoman said: “Per JCQ guidelines, all boards share grade boundary info with schools a day in advance to help teachers prepare and support their students better on results day.
“Our systems are working as they should and the information was shared today via a password-protected, secure website.
“Boards do ask schools not to share this widely to avoid unnecessary stress for students awaiting their results.
“Schools are trusted to treat the info confidentially on behalf of their students and the vast majority do.”