The choice of over 400,000 participants from more than 40 countries – the Singapore & Asian Schools Math Olympiad (SASMO) – is changing the landscape of Asian math competitions with its unique philosophy of "real-life mathematics."
Since its inception in 2006, the SASMO competition has become one of the largest math competitions in Asia. This event covers 12 grade levels from Primary 1 to Junior College 2, with separate papers for each grade, ensuring question difficulty matches students' cognitive levels.
The competition uses bilingual (Chinese and English) test papers, accommodating participants from different language backgrounds. Its unique 15-point starting score mechanism avoids negative scores, reducing the psychological pressure on beginners.
This article will systematically analyze the core tested topics, common error-prone points in the SASMO competition, and predict the 2026 exam trends to help candidates formulate effective preparation strategies.
01 Event Overview and Exam Format
The SASMO competition attracts hundreds of thousands of students globally each year. Its exam format is scientifically designed to comprehensively assess students' mathematical abilities while maintaining good differentiation.
In terms of exam structure, the SASMO paper consists of 25 questions divided into two parts, A and B. Section A contains 15 multiple-choice questions, each worth 2 points: +2 for a correct answer, -1 for a wrong answer, 0 for no answer. Section B contains 10 short-answer questions, each worth 4 points: +4 for a correct answer, 0 for a wrong or no answer.
The scoring mechanism is a key feature of SASMO: the raw paper total is 70 points, plus 15 starting points, resulting in a final perfect score of 85 points. This design avoids negative scores and eases students' psychological pressure.
Regarding timing, the exam duration is 90 minutes, and the use of calculators is prohibited throughout. The 2026 SASMO exam is scheduled for mid-April, with registration typically open from January to March.
SASMO Exam Structure and Scoring Rules
| Exam Part | Question Type | Number of Questions | Points per Question | Scoring Rule | Section Total |
|---|---|---|---|---|---|
| Part A | Multiple Choice | 15 | 2 points | Correct: +2, Wrong: -1, No answer: 0 | 30 points |
| Part B | Short Answer | 10 | 4 points | Correct: +4, Wrong: 0, No answer: 0 | 40 points |
| Total | 25 | 70 (Raw) + 15 (Start) = 85 points |
02 Analysis of Core Tested Topics by Grade Level
The SASMO competition content closely aligns with the mathematics curriculum for each grade while focusing on expanding students' mathematical thinking and ability to solve practical problems.
Focus for Primary School (G1-G6)
Lower Primary (G1-G3): Mainly tests basic calculation skills, simple geometric figure recognition, and basic logical reasoning. Question design emphasizes fun and relevance to daily life, introducing mathematical concepts through scenarios like shopping or sharing items.
Upper Primary (G4-G6): While consolidating foundational knowledge, gradually introduces algebraic thinking, spatial imagination, and complex logical reasoning. Typical questions include reconstructing 3D figures from nets, analyzing number patterns, etc.
Focus for Secondary School (G7-G12)
Middle School (G7-G9): Focuses on solving algebraic equations, geometric proofs, and data analysis skills. Core topics include the Pythagorean theorem, introduction to functions, and interpreting statistical charts.
High School (G10-G12): Requires mastery of more abstract mathematical concepts such as trigonometric functions, vector calculations, probability models, and congruence theorems. Questions emphasize the comprehensive application of multiple knowledge points and mathematical modeling abilities.
Distribution of Core Tested Topics in SASMO by Grade Level
| Grade Level | Arithmetic & Algebra Focus | Geometry & Measurement Focus | Statistics & Probability | Unconventional Problem Solving |
|---|---|---|---|---|
| G1-G4 | Basic operations, number patterns | Symmetry, simple measurement | Data statistics | Number patterns, spatial visualization, logical reasoning |
| G5-G6 | Algebraic expressions, solving equations | 3D nets, ratio calculations | Basic probability | Code-breaking algorithms, spatial visualization |
| G7-G8 | Solving systems of equations, intro to functions | Pythagorean theorem, geometric transformations | Statistical chart analysis | Complex logic problems, combinatorial optimization |
| G9-G12 | Trigonometry, vectors, polynomials | Trigonometry, geometric proofs | Probability models, data distribution | Congruence theorems, dynamic geometry problems |
03 Seven Major Question Types and Point Distribution
SASMO competition questions can be divided into seven major types, each testing different mathematical abilities and thinking perspectives.
Application Practice Problems are the most common type, accounting for about 40% of the total questions. These questions combine mathematical knowledge with real-life scenarios, such as financial mathematics, optimizing transportation routes, resource allocation, etc.
Graphic Cognition Problems account for about 20% , mainly testing geometric intuition and spatial imagination, including graphic transformations, symmetry, 3D nets, etc.
Logical Reasoning Problems account for about 15%-25% , emphasizing critical thinking and logical analysis skills, such as analyzing number table patterns, code-breaking, strategy games, etc.
Innovative Thinking Problems, although not high in proportion, are quite difficult. They require candidates to use unconventional methods to solve novel problems, such as operations in non-decimal bases, application of the pigeonhole principle, etc.
04 Common Error-Prone Points and Coping Strategies
Analysis of past exam data reveals that SASMO participants often make systematic errors on certain specific types of questions.
Error-Prone Points in the Multiple-Choice Section
Unit confusion is a common mistake, especially in unit conversion problems, where the error rate for converting cm/m exceeds 70% .
Logical qualifiers in the question, such as "at least" and "cannot," are also easily overlooked, leading to a wrong problem-solving direction.
Blind guessing is another major point loss. Due to the point deduction in Section A, randomly guessing on uncertain questions can actually lead to a loss of points. Data analysis shows that over 65% of candidates still choose to fill in an answer randomly when unsure.
Error-Prone Points in the Short-Answer Section
Incomplete solution steps are the main reason for point loss in short-answer questions. In geometry proof questions, failing to annotate key theorems (like the perpendicular chord theorem or properties of angle bisectors) can result in point deductions even if the final answer is correct.
Modeling deficiencies are particularly common in word problems. For example, in problems similar to the classic "chickens and rabbits in a cage," directly setting up equations without first stating the meaning of the variables creates a logical gap.
Omitting multiple solutions is another common issue. For instance, combinatorial problems may require verifying multiple scenarios, but candidates often only find part of the answers.
Poor time allocation leading to rushed answers in the short-answer section. About 30% of candidates cannot complete the last 3 short-answer questions, which carry higher point values and have no penalty for wrong answers.
SASMO Common Error-Prone Points and Coping Strategies
| Error-Prone Question Type | Manifestation of Error | Coping Strategy |
|---|---|---|
| Combinatorics | Double counting, omissions in classification | Master tree diagrams, case-based discussion thinking |
| Geometry Proofs | Incorrect auxiliary lines, misuse of properties | Become proficient in basic图形性质 (graphic properties), train dynamic geometry thinking |
| Number Theory Problems | Modular arithmetic errors, misunderstanding of divisibility properties | Strengthen skills in congruence theorems, prime factorization |
| Logical Reasoning | Incomplete condition analysis, inaccurate contradiction identification | Use logical tools like truth tables, proof by contradiction |
05 2026 Question Trend Predictions
Based on recent SASMO question-setting patterns and analysis of the 2025 exam, the 2026 SASMO competition is expected to show the following major trends:
Interdisciplinary integration will deepen. Question backgrounds will increasingly incorporate practical problems from fields like financial mathematics, engineering modeling, and environmental science, such as compound interest calculations for digital currency, optimization of building structural stability, etc.
The trend towards real-life application is evident. The 2026 SASMO is expected to include more questions closely related to daily life, such as water-saving device design, AI algorithm logic, etc., emphasizing the practical application value of mathematical knowledge.
Asian cultural elements will permeate question design. The competition will increasingly integrate elements of traditional Asian culture into question design, such as calculating the date of the Lunar New Year, geometric principles in traditional crafts, etc., adding cultural connotation and interest to the questions.
Innovative question types will continue to emerge. The 2026 season may introduce new types like programming logic questions, requiring the use of pseudocode to implement a prime factorization algorithm, testing students' computational thinking and algorithmic design abilities.
06 Efficient Preparation Strategies
Given the characteristics of the SASMO competition and the 2026 trends, developing a scientific preparation plan is crucial.
Three-Stage Preparation Plan
| Preparation Phase | Timeline | Core Tasks | Target Outcome |
|---|---|---|---|
| Foundation Consolidation | 3-6 months before exam | Systematically review core in-class knowledge (e.g., divisibility rules, solving equations). Strengthen calculation accuracy. | Master core concepts, achieve stable scores on the first 10 questions. |
| Skill Enhancement | 2-3 months before exam | Focus on breakthroughs in logical reasoning and innovative question types. Use the Singapore CPA approach to transform practical problems. Conduct timed mock tests 2-3 times per week. | Break through medium-to-high difficulty questions, master multiple解题方法 (problem-solving methods). |
| Final Sprint & Mock Exams | 1 month before exam | Conduct full simulation training, strictly controlling time to 90 minutes. Focus on analyzing solution methods for innovative questions from the last 5 years' papers. | Form a stable answering rhythm, achieve targeted breakthroughs in high-frequency error-prone questions. |
Exam Room Techniques
Time Allocation: The first 10 questions should be controlled within 20 minutes to avoid "simple question traps." The entire Section A (Multiple Choice) should ideally not exceed 40 minutes, reserving at least 45 minutes for Section B (Short Answer).
Answering Strategy: For the multiple-choice section, use the reverse verification method based on option differences." For uncertain questions, first eliminate clearly wrong options before guessing cautiously. For the short-answer section, even if you are not completely sure, write down your solution steps, as partially correct work may still earn points.
Reverse Verification is a practical technique: substitute options back into algebraic problems to check, use common sense to screen geometry answers (e.g., a perimeter cannot be negative). For complex problems, working backwards from the options or combining with graphical analysis can often simplify the thought process.
For students planning to participate in the 2026 SASMO competition, now is the golden time for preparation. Whether the goal is to test the waters or aim for a Gold Award, systematic preparation and scientific methods are the keys to success. Solid knowledge reserves, a keen grasp of exam trends, and good time management will help you stand out in this mathematical feast.
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SASMO competition past papers for all levels from the last ten years + answer keys + explanations + textbooks ⇓

