Cambridge IGCSE Question Simulator

O Level Additional Mathematics (4037)

Exam guide

Paper structure, topic weights, banker topics, trends, common mistakes and grade thresholds, from our analysis of the May/June 2022 to May/June 2026 papers.

Figures are estimates from one variant of each paper per session. Always check the current syllabus on cambridgeinternational.org.

Paper structure

2022 – Nov 2024 2025 onwards (syllabus 2025–2027)
Paper 1 "Paper 1", 2 hours, 80 marks, calculator allowed (single questions could say "do not use a calculator in this question") "Paper 1 Non-calculator", 2 hours, 80 marks, no calculator anywhere
Paper 2 "Paper 2", 2 hours, 80 marks, calculator allowed "Paper 2", 2 hours, 80 marks, scientific calculator allowed
Questions 10–12 questions per paper, each worth 3–15 marks and split into parts 10–13 questions per paper, same style
Formula page Algebra (quadratic formula, binomial, AP, GP) and trigonometry (identities, sine and cosine rules, triangle area) The same, plus the equation of a circle, the curved surface area of a cone, the surface area of a sphere, and the volumes of a cone/pyramid and a sphere
Total 160 raw marks (both papers count equally) 160 raw marks

Topic weights

Share of all 1,440 sampled marks (Paper 1 + Paper 2, variant 2). "Sessions" = number of the 9 sessions in which the topic earned marks in the sample.

Topic Share of marks Sessions examined Mainly on
Differentiation 13.4 % 9 / 9 Paper 2 (122 of 193 marks)
Series (binomial, AP, GP) 12.9 % 9 / 9 both
Integration 10.5 % 9 / 9 both
Trigonometry 9.5 % 9 / 9 both
Straight-line graphs (incl. log-linear graphs) 6.1 % 8 / 9 both
Vectors in two dimensions 6.0 % 9 / 9 both
Functions 6.0 % 8 / 9 Paper 1 (57 of 86)
Permutations and combinations 5.3 % 9 / 9 both
Factors of polynomials 4.9 % 9 / 9 both
Circular measure 4.7 % 9 / 9 Paper 1 (53 of 68)
Logarithmic and exponential functions 4.6 % 8 / 9 both
Equations, inequalities and graphs (modulus, cubics) 4.5 % 9 / 9 both
Kinematics 3.8 % 7 / 9 Paper 2 (38 of 55)
Indices and surds 3.3 % 6 / 9 (none since 2025) both
Quadratic functions 2.4 % 7 / 9 Paper 2
Coordinate geometry of the circle 1.5 % 3 / 3 since it was added in 2025 both
Simultaneous equations (as a question of their own) 0.6 % 2 / 9 Paper 2

Calculus (differentiation + integration + kinematics) makes up about 28 % of the marks. Calculus plus series plus trigonometry makes up just over half.

Marks per session (both papers, out of 160):

Topic 22 MJ 22 ON 23 MJ 23 ON 24 MJ 24 ON 25 MJ 25 ON 26 MJ
Differentiation 25 16 30 15 20 41 21 9 16
Series 21 25 22 17 20 16 25 19 21
Integration 24 9 13 11 19 12 19 30 14
Trigonometry 12 27 10 20 13 14 13 14 14
Straight-line graphs 7 12 9 12 20 0 6 13 9
Vectors 12 8 8 9 10 9 9 8 14
Functions 0 10 10 10 8 13 12 11 12
Permutations and combinations 7 9 8 8 10 8 8 8 10
Factors of polynomials 5 5 8 15 5 8 10 7 7
Circular measure 7 7 7 7 9 7 8 8 8
Logs and exponentials 13 9 6 9 3 8 0 11 7
Equations, inequalities and graphs 5 4 7 5 6 10 11 10 7
Kinematics 11 6 6 9 0 6 10 0 7
Indices and surds 6 4 9 8 13 8 0 0 0
Quadratic functions 5 4 7 5 4 0 0 4 5
Circle coordinate geometry – – – – – – 8 4 9
Simultaneous equations 0 5 0 0 0 0 0 4 0

Bankers

These came up in every session in the sample, usually with about the same number of marks each time:

Rarely tested

Question styles

Common mistakes

From the examiner reports for June 2022, Nov 2022 and June 2023.

Grade thresholds

Minimum raw marks out of 80 for the sampled components, and out of 160 for the overall option. For May/June the option is AY (components 12 + 22). For Oct/Nov it is also AY (12 + 22).

Session Component 12: A / C / E Component 22: A / C / E Option AY (out of 160): A* / A / B / C / D / E
2022 MJ 48 / 17 / 8 42 / 17 / 8 118 / 90 / 62 / 34 / 25 / 16
2022 ON 50 / 18 / 9 51 / 18 / 8 130 / 101 / 68 / 36 / 26 / 17
2023 MJ 53 / 21 / 9 50 / 20 / 10 131 / 103 / 72 / 41 / 30 / 19
2023 ON 62 / 26 / 14 64 / 23 / 12 143 / 126 / 87 / 49 / 37 / 26
2024 MJ 53 / 25 / 13 57 / 31 / 19 135 / 110 / 83 / 56 / 44 / 32
2024 ON 58 / 20 / 10 52 / 17 / 9 135 / 110 / 73 / 37 / 28 / 19
2025 MJ 60 / 30 / 17 55 / 29 / 16 137 / 115 / 87 / 59 / 46 / 33
2025 ON 57 / 20 / 11 56 / 19 / 9 136 / 113 / 76 / 39 / 29 / 20
2026 MJ 61 / 31 / 18 56 / 28 / 15 138 / 117 / 88 / 59 / 46 / 33

Revision priorities for Oct/Nov 2026 and 2027

  1. Calculus first (about 28 % of the marks). Practise chain, product and quotient rules quickly and accurately, tangents and normals, connected rates and small changes, and stationary points with the second-derivative test. Practise areas between a curve and a line with exact answers: these are 8–11-mark questions. Also practise integrating f″(x) twice to rebuild a curve, and "differentiate, then hence integrate" pairs.
  2. Series (about 13 %). Binomial terms including the term independent of x and products of two brackets; AP and GP with log or trig terms; the condition |r| < 1 for a sum to infinity.
  3. Trigonometry (about 10 %). Equations in sec, cosec and cot with compound angles in both degrees and radians; identity proofs; reading a, b and c from a graph.
  4. Non-calculator fluency for Paper 1. Surds, exact trig values, exact logs, fractions, solving cubics by the factor theorem, and quadratics by hand.
  5. The new circle topic. Circle equations by completing the square, tangent checks with the discriminant, the point of contact, and circles through three points.
  6. Reliable mid-weight marks. Functions (inverse, domain and range, sketches of f and f⁻¹, composites), radian sectors, vectors (ratio geometry and collision problems), permutations and combinations including ⁿCᵣ algebra, log-linear graphs (find y in terms of x), and modulus equations and inequalities.
  7. Lower priority but keep warm. Kinematics graphs, practical max/min (box or tank), quadratic inequalities and completing the square, and simultaneous equations where a line meets a curve.
  8. Exam habits. State the intercepts on every sketch, give exact forms when asked, show every step in "show that" and no-calculator work, follow "hence", and check signs and brackets.

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