Overall Exam Overview & Structure

The February/March 2026 Cambridge IGCSE Mathematics sitting maintained the new modern syllabus layout, demanding rigorous exact non-calculator proficiency in Paper 22 alongside complex multi-step modelling and statistical application in Paper 42. The combined 200 marks provide an expansive test of both foundational numeric dexterity and advanced Extended-tier problem solving.

Where the Marks Were Found

Algebra and Graphs formed the central pillar of the series, spanning algebraic fractions, index equations, functions (domain, range, and composition), and cubic sketching. Mensuration and Trigonometry represented a substantial share of higher-tariff questions, specifically exact surd forms in right-angled triangles \((\cos 30^\circ = \frac{\sqrt{3}}{2})\), 3D multi-step trigonometry involving the cosine rule linked to vertical masts, and surface areas of composite cones and hemispheres.

Common Examiner Pitfalls & Misconceptions

  • Non-Calculator Arithmetic & Algebraic Signs: In Paper 22, candidates struggled when rationalising surd expressions such as \(\frac{24}{\sqrt{3}}\) and evaluating the quadratic formula determinants without a calculator \((-b \pm \sqrt{b^2 - 4ac})\), often dropping negatives or failing to divide both numerator terms.
  • Geometric Language & Notation: In circle theorems, vague terms such as 'perimeter' or 'edge' were penalised instead of 'circumference'. In set theory, empty sets were frequently misrepresented as \(0\) or \(\{\emptyset\}\) instead of \(\emptyset\) or \(\{\}\).
  • Premature Rounding: In Paper 42's multi-step 3D trigonometry and bounds questions, rounding intermediate angles (such as \(\angle ADC\)) to 3 significant figures led to final accuracy loss in subsequent steps.
  • Inequality Boundary Handling: Graphical inequalities frequently suffered from reversed signs or confusing strict inequalities with non-strict inequalities.

Strategic Advice & Preparation

Focus intensively on non-calculator techniques including completing the square, indices with fractional and negative bases, and exact trigonometric ratios. When attempting multi-step calculator problems, maintain full values in calculator memory until writing down the final 3 significant figures or 1 decimal place for angles.