Maths exams: show the working, or lose the marks you earned
How method marks work, why the working is worth marks, and when to round in a maths paper.
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Parents and students · Subjects and choices
Two extra maths subjects that take algebra, trigonometry and calculus further than a main maths course. They come from different boards, and the exams are not the same.
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Cambridge O Level Additional Mathematics (4037) and Edexcel International GCSE Further Pure Mathematics (4PM1) are both extra maths subjects. Both go beyond a main maths course into harder algebra, logarithms, trigonometry, series and calculus.
They are not the same qualification under two names. 4037 comes from Cambridge and 4PM1 from Pearson Edexcel. The papers, the marks and the calculator rules are different, so the practice has to match the code.
4PM1 is usually taken alongside Edexcel Mathematics A or Mathematics B. For 4037, ask the school how it fits with the main maths course. Either way, the school decides what it offers and enters students for, so start there.
The syllabus has 14 topics: functions; quadratic functions; factors of polynomials; equations, inequalities and graphs; simultaneous equations; logarithmic and exponential functions; straight-line graphs; coordinate geometry of the circle; circular measure; trigonometry; permutations and combinations; series; vectors in two dimensions; and calculus.
The specification covers logarithms, indices and surds; the quadratic function and the roots of a quadratic; identities and inequalities, with the factor and remainder theorems; graphs; arithmetic and geometric series; the binomial series; vectors; coordinate geometry; calculus, including kinematics, areas, volumes and rates of change; and trigonometry, from radians to the addition formulae and trigonometric equations.
The two lists overlap a good deal, but the topics are arranged and weighted differently. Read the full content of each syllabus before choosing, not just the topic names.
| Additional Mathematics 4037 | Further Pure Mathematics 4PM1 | |
|---|---|---|
| Board | Cambridge (O Level) | Pearson Edexcel (International GCSE) |
| Papers | Paper 1 and Paper 2 | Paper 1 and Paper 2 |
| Length | 2 hours each | 2 hours each |
| Marks | 80 each | 100 each |
| Weight | 50% each | 50% each |
| Calculator | Not on Paper 1; allowed on Paper 2 | Allowed on both papers |
| Question style | Structured, written working | Written working, questions worth varying marks |
Neither has multiple choice. In both, the working earns marks, so a clearly set-out solution counts.
This is the clearest difference. Since the 2025 exams, 4037 Paper 1 is sat without a calculator. So half of the 4037 marks depend on working by hand: simplifying surds, using the laws of logarithms, knowing exact trigonometric values and handling fractions and algebra without a machine to check them.
4PM1 allows a calculator on both papers. That does not make it easy. The working still has to be shown, and a calculator cannot set out a proof or choose a method. But the arithmetic on the day is lighter.
Anyone sitting 4037 should practise Paper 1 questions without a calculator from the start, not only in the final weeks.
An extra maths subject suits a student who is secure in their main maths course and enjoys it. Both build on the algebra of the main course, so that algebra needs to be fluent. If the main course still feels hard, it usually makes more sense to get that secure first.
It is also a real workload: two more 2-hour papers, on top of the main maths papers and every other subject. Before starting, be honest about how many hours a week it will take and what else would have to give.
Whether it helps with later study, such as A Level Mathematics, depends on the school or college the student moves on to. Ask them directly.
Eudika Learn has a recorded course for each.
Both courses are recorded, with no live teacher. If you need someone to talk a method through, keep a teacher or tutor for that. You can also look at Mathematics B past papers to see how the main Edexcel course asks its questions.
Browse real past papers by board and subject before you decide.
That depends on the school, sixth form or college you are moving on to. Ask them directly, because we cannot tell you what a particular institution requires.
4PM1 is usually taken alongside an Edexcel main maths course, Mathematics A (4MA1) or Mathematics B (4MB1). For 4037 alongside Cambridge O Level Mathematics D (4024), or any other combination across boards, ask the school or exam centre what they will enter your child for.
For the topics, yes. For the paper itself, no. 4037 papers set before 2025 allowed a calculator on Paper 1, so they are not a guide to the non-calculator paper. Use them for topic practice, and do the questions that allow it without a calculator.
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