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Cambridge O Level Mathematics (Syllabus D) (4024)

O Level Maths, with and without a calculator.

Half your marks come from a paper with no calculator, so number skills matter as much as methods. Your tutor works through 4024 questions line by line and checks each step, so you keep the method marks.

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Without a calculator, simplify √50 + √18.[2 marks]

This is worth 2 marks. They go for:

  • √50 = √25 × √2 = 5√2 and √18 = √9 × √2 = 3√2 (1 mark)
  • 5√2 + 3√2 = 8√2 (1 mark)

Examiner tip: Look for the largest square factor of each number. Surds are on the syllabus from 2025, so expect them on Paper 1.

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Assessment

How Cambridge O Level Mathematics (Syllabus D) is assessed

There are no tiers. Everyone takes both papers, each worth 50%, and can get grades A*–E.

Syllabus 4024, for exams in 2025–2027. The 2028–2030 syllabus has no significant changes that affect teaching.

All students

  • Paper 1: Non-calculator

    Structured and unstructured questions on any of the content except using a calculator, no calculator

    Time
    2 h
    Marks
    100
    Weight
    50%

  • Paper 2: Calculator

    Structured and unstructured questions, scientific calculator (algebraic and graphical calculators aren’t allowed)

    Time
    2 h
    Marks
    100
    Weight
    50%

There is no coursework. Both papers are written exams, with a list of formulas on page 2 of each.

From the official Cambridge International syllabus, checked October 2026. Read the syllabus

Syllabus content

What’s on the Cambridge O Level Maths syllabus

  • Number
  • Algebra and graphs
  • Coordinate geometry
  • Geometry
  • Mensuration
  • Trigonometry
  • Transformations and vectors
  • Probability
  • Statistics

Where marks are lost

Common Cambridge O Level Maths mistakes

  • Using 3.14 for π.

    Use the π button on your calculator or 3.142, as the syllabus says. 3.14 can push a 3-significant-figure answer off by one in the last digit.

  • Not flipping the inequality sign.

    When you multiply or divide both sides of an inequality by a negative number, reverse the sign: −2x < 6 gives x > −3.

  • Measuring bearings the wrong way.

    Bearings are measured clockwise from north and written with three figures, such as 045°. Draw a north line at the point you’re measuring from.

Six maths tutors, six ways to learn

Practise past-paper style questions with the exam coach, drill facts before a test with quick revision, or slow down with a step-by-step tutor. Switch any time.

See how each one teaches How the AI tutor works
  • ArjunConcept explainer
  • MiraStep by step
  • KofiExam coach
  • SofiaQuick revision
  • RaviChallenger
  • HanaConfidence builder

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FAQ

Cambridge O Level Maths questions, answered.

Yes. Ask a quick-revision tutor for short drills on fractions, surds, standard form and percentages, then time yourself on longer Paper 1 questions.

No. Cambridge offers it in administrative zones 3, 4 and 5 for 2026–2028, and in zone 4 only from 2029. Schools in zones 3 and 5 are pointed to IGCSE Mathematics 0580.

Surds and exponential growth and decay were added, and loci and matrices were removed. Paper 1 went up to 100 marks and Paper 2 down to 2 hours, so both are now 2 hours and 100 marks.

Yes. The free plan includes 5 tutor messages and 15 minutes of calls a day. Pro and Max give you more when exams get close.

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More Cambridge O Level subjects

Maths in other curricula