0607 · Cambridge IGCSE
0607/21
(Extended, Non-calculator)
International Mathematics · June 2025 · Variant 1
Relative difficulty
Analysis source: Cambridge Assessment International Education
Analysis aligned to the official syllabus and assessment design.
3.0 / 5
200
270 min
Sequences & Pattern Generalisation
Cohort performance
Session statistics from official examination reports
Total marks
200
Duration
270 min
Session difficulty
3.0 / 5
Key examiner messages
Top priorities from the principal examiner before you revise
The core of the marks on the Extended path resides in three key areas: Sequences & Generalisation, Algebraic Manipulation, and Geometric Modelling.
Across the papers, sequences accounted for a total of 28 marks, driven largely by the investigation on Products of Pairs.
Mastery of quadratic functions, expanding triple brackets, and algebraic fractions (specifically setting up speed, distance, and time equations) constitutes nearly 25% of the total Extended marks.
On the calculator-based Paper 41, being proficient with Graphic Display Calculators (GDC) to sketch asymptotes, find local minima, and solve inequalities graphically yielded a high concentration of marks.
Question difficulty map
How candidates performed on each question in this series
No data available in official reports
Assessment objectives
Skill and AO weighting from official examiner commentary
Skill weighting
Shows the skill mix this paper tested most heavily.
Algebraic Proficiency
Weight: 8100%Geometric & Graphical Reasoning
Weight: 675%Spatial Calculator (GDC)
Weight: 563%Analysis & R
Weight: 338%Algorithmic Investigation
Weight: 225%
Method marks watchlist
Where working, steps, or method marks were commonly lost
No data available in official reports
Recurring mistakes across years
Themes examiners flag in multiple recent sessions for this subject
No data available in official reports
Question choice intelligence
Mean scores and popularity for optional questions (HKDSE electives)
No data available in official reports
Level exemplars
What candidate scripts at each grade level looked like
No data available in official reports
Grade & admission context
How marks relate to grade thresholds and entry standards
Report type
Cambridge Principal Examiner Report — component performance and international standards
Level A*
Approx. 84% of maximum mark
Level A
Approx. 69% of maximum mark
Level B
Approx. 53% of maximum mark
Level C
Approx. 38% of maximum mark
Level D
Approx. 30% of maximum mark
Level E
Approx. 22% of maximum mark
Deep insights
What top candidates did
Techniques and approaches examiners rewarded in this series
No data available in official reports
Command word playbook
How to match each command word to the expected response style
Match the expected response style for “Find” questions.
Show formula, substitution, and unit; method marks need visible working.
Match the expected response style for “Show” questions.
Match the expected response style for “Simplify” questions.
Match the expected response style for “Solve” questions.
State features in sequence or list observable properties — do not explain causes unless asked.
Time traps
Sections where candidates spent disproportionate time relative to marks
Min per mark: 1.8
Min per mark: 1.2
Syllabus traceability
Topics linked to questions and mark weighting in this session
Sequences
28 marks this session
Similarity
15 marks this session
Algebraic manipulation
14 marks this session
Pythagoras’ theorem
13 marks this session
MCQ trap analytics
Commonly chosen wrong options from examiner commentary
No data available in official reports
Topic heatmap across years
Mark concentration by topic and exam year for this subject
Mark intensity
Sequences
Algebraic manipulation
Functions
Similarity
Surface area and volume
Pythagoras’ theorem
Probability of combined events
Transformations
Difficulty trend
How session difficulty has shifted across recent years
Paper comparison
Marks and duration breakdown across papers in this session
Paper 21 (Extended Non-Calculator):
Paper 41 (Extended Calculator):
Paper 61 (Extended Investigation & Modelling):
Marks you can still earn
Where valid approaches outside the mark scheme may still gain credit
No data available in official reports
Practise what examiners flagged
Target weak topics from this report inside the Revui app
Sequences
28 marks this session
Practise in RevuiSimilarity
15 marks this session
Practise in RevuiAlgebraic manipulation
14 marks this session
Practise in RevuiPythagoras’ theorem
13 marks this session
Practise in RevuiSelf-diagnostic checklist
Key actions before you sit this paper — copy and tick off as you revise
- 1Message
The core of the marks on the Extended path resides in three key areas: Sequences & Generalisation, Algebraic Manipulation, and Geometric Modelling.
- 2Message
Across the papers, sequences accounted for a total of 28 marks, driven largely by the investigation on Products of Pairs.
- 3Message
Mastery of quadratic functions, expanding triple brackets, and algebraic fractions (specifically setting up speed, distance, and time equations) constitutes nearly 25% of the total Extended marks.
- 4Message
On the calculator-based Paper 41, being proficient with Graphic Display Calculators (GDC) to sketch asymptotes, find local minima, and solve inequalities graphically yielded a high concentration of marks.
Teacher briefing pack
One-page session summary for tutors and classroom review
June 2025 2025
International Mathematics
The core of the marks on the Extended path resides in three key areas: Sequences & Generalisation, Algebraic Manipulation, and Geometric Modelling. Across the papers, sequences accounted for a total of 28 marks, driven largely by the investigation on Products of Pairs. Mastery of
The core of the marks on the Extended path resides in three key areas: Sequences & Generalisation, Algebraic Manipulation, and Geometric Modelling.
Across the papers, sequences accounted for a total of 28 marks, driven largely by the investigation on Products of Pairs.
Mastery of quadratic functions, expanding triple brackets, and algebraic fractions (specifically setting up speed, distance, and time equations) constitutes nearly 25% of the total Extended marks.
- Total marks
- 200
- Duration
- 270 min
- Session difficulty
- 3.0 / 5
Session analysis
The core of the marks on the Extended path resides in three key areas: Sequences & Generalisation, Algebraic Manipulation, and Geometric Modelling. Across the papers, sequences accounted for a total of 28 marks, driven largely by the investigation on Products of Pairs. Mastery of quadratic functions, expanding triple brackets, and algebraic fractions (specifically setting up speed, distance, and time equations) constitutes nearly 25% of the total Extended marks. On the calculator-based Paper 41, being proficient with Graphic Display Calculators (GDC) to sketch asymptotes, find local minima, and solve inequalities graphically yielded a high concentration of marks.
Updated Jun 13, 2026
Paper breakdown
Paper 21 (Extended Non-Calculator):
Paper 41 (Extended Calculator):
Paper 61 (Extended Investigation & Modelling):
Top chapters
Exam structure insights
Marks by chapter
See where the marks were concentrated so revision time goes to the highest-value topics.
Mark accessibility
Estimate which marks were basic, mid-level, or high-difficulty.
80% within easy or medium reach
Command word frequency
Spot common command words so answers match the expected response style.
Question type mix
Compare the mark share of each paper section and question type.
Long Answer
(Structured Calculus/Geometry)
68·9·34%
Investigation & Modelling Task
50·2·25%
Medium Answer
(Application/Multi-step)
48·15·24%
Short Answer
(Numeric/Recall)
34·18·17%
Study ROI
Bigger bubbles recur more often; higher bubbles carry more marks, helping you rank revision priorities.
Time vs marks
Compare marks with suggested time allocation to plan exam pacing.
Paper 21 (Non-calcu…
0.83 m/minPaper 41 (Calculato…
0.56 m/minTotal marks
125
Total time
180 min
Avg pace
0.69
Next-year prediction
Topics worth watching next year, with the reason shown directly below each bar.
3D Geometry & Space Trigonometry
85%85%
Logarithmic Functions & Graphs
75%75%
Executive Difficulty Verdict
The May/June 2025 examination series for Cambridge IGCSE International Mathematics (0607) presents a highly balanced split between core procedural fluency and complex mathematical modelling. While Papers 11 and 31 (Core) offer a very accessible path for students to showcase fundamental arithmetic, coordinate work, and basic algebra, the Extended papers—particularly Paper 21 and Paper 61—elevate the rigor significantly. Paper 61 requires exceptional comfort with generalising patterns and translating real-world scenarios, such as the Crossed Poles physics model, into algebraic equations using similar triangles and Pythagoras\u2019 theorem.
Where the Marks Are
The core of the marks on the Extended path resides in three key areas: Sequences & Generalisation, Algebraic Manipulation, and Geometric Modelling. Across the papers, sequences accounted for a total of 28 marks, driven largely by the investigation on Products of Pairs. Mastery of quadratic functions, expanding triple brackets, and algebraic fractions (specifically setting up speed, distance, and time equations) constitutes nearly 25% of the total Extended marks. On the calculator-based Paper 41, being proficient with Graphic Display Calculators (GDC) to sketch asymptotes, find local minima, and solve inequalities graphically yielded a high concentration of marks.
Exam tips
Paper format
- Duration
- 1h 30min
- Total marks
- 75
Analysis is paraphrased for study purposes. Always verify against the official examiner report and mark scheme.