PSLE Mathematics publishes its mark scheme down to the individual question type, and the detail changes what practice should look like. One rule in particular is worth more than any revision technique: on some questions, a wrong answer still earns a mark if the working is there.
The short version
- On one-part short-answer questions, a wrong answer still earns 1 of 2 marks for correct method.
- The ten long-answer questions carry 40 of the 100 marks — more than either Paper 1 booklet.
- No calculator in Paper 1, which is half the subject. Calculators are allowed in Paper 2.
- 45 questions, 100 marks, 2 h 30 min in total, both papers on the same day.
All 100 marks, booklet by booklet
Two papers, three booklets, 45 questions. The examination format sets out exactly how the marks fall.
| Paper | Question type | Number | Each | Marks |
|---|---|---|---|---|
| Paper 1 | Multiple choice | 10 questions | 1 mark | 10 |
| Paper 1 | Multiple choice | 8 questions | 2 marks | 16 |
| Paper 1 | Short answer | 12 questions | 2 marks | 24 |
| Paper 2 | Short answer | 5 questions | 2 marks | 10 |
| Paper 2 | Structured / long answer | 10 questions | 3, 4 or 5 marks | 40 |
Paper 1 is 1 h 10 min and carries 50 marks. Paper 2 is 1 h 20 min and carries the other 50.
The line that should govern a revision plan is the last one: ten questions, 40 marks. The long-answer section is worth more than all of Booklet A, and more than all of Booklet B. It is also the section that tends to be practised last.
The method mark pupils throw away
The marking rules for short-answer questions are published, and they contain something many pupils have never been told.
- One-part question: 2 marks for the correct answer. If the answer is wrong, 1 mark is awarded for the correct method.
- Two-part question: 2 marks in total, one for each part.
- Structured / long answer: the method must be shown clearly, and the marks are allocated across the steps.
- Units: any unit needed is printed for you, and the answer must be given in it.
Booklet B has twelve one-part short-answer questions. A pupil who works them mentally and writes only a number is playing all twelve for two marks or nothing. A pupil who writes the working keeps a mark on every question they get wrong — and on a difficult paper, that is the difference between grade bands.
Two very different papers
The two papers carry the same 50 marks and ask for almost opposite things.
Paper 1 — 1 h 10 min, 30 questions, no calculator
Roughly two minutes a question, and every calculation done by hand. This paper rewards arithmetic fluency and steadiness more than problem-solving depth.
Paper 2 — 1 h 20 min, 15 questions, calculator allowed
Roughly five minutes a question, ten of them worth 3 to 5 marks each. This paper rewards reading the problem properly and setting out a method.
Practising everything with a calculator prepares for one paper and quietly undermines the other. Both are on the same day, with a break between them.
How to revise PSLE Maths
- Weight practice to the long-answer questions. Forty marks sit there, and they are the ones that reward method.
- Do Paper 1 practice by hand. Fifty marks depend on arithmetic without a calculator.
- Make showing working automatic, including on 2-mark questions where the method mark exists.
- Mix topics. Topic-sorted worksheets announce the method; the exam will not.
- Use whole past papers to time. Prelim and past-year primary papers are in our free test papers library.
- Mark against the scheme and classify the loss — concept, method, arithmetic slip, or misread question. Each needs a different response.
For topic coverage across the primary syllabus, see our PSLE Maths subject guide. This page is about where the marks are; that one is about what is on the syllabus.
10 common PSLE Maths mistakes
These are the ones our tutors correct most often across the three booklets, and what to do instead.
Writing no working in Booklet B
On a one-part short-answer question, 2 marks go to a correct answer — and if the answer is wrong, 1 mark is still awarded for the correct method. A blank space beside a wrong answer earns nothing at all.
The fix: Show the working even on 2-mark questions. Across twelve of them, the habit is worth real marks on a bad day.
Treating the long-answer section as the last thing
The ten structured questions in Paper 2 carry 40 marks — 40% of the entire subject, and more than either booklet of Paper 1.
The fix: Give them the majority of practice time, and never let them be the questions that get the leftover minutes.
Practising with a calculator throughout
Calculators are not allowed in Paper 1, which is 50 of the 100 marks. A pupil who practises everything with one arrives without the arithmetic fluency the first paper assumes.
The fix: Do all Paper 1 practice by hand. Save the calculator for Paper 2 practice, where it is permitted.
Rushing Paper 1 because the questions look small
Paper 1 is 30 questions in 1 hour 10 minutes — a little over two minutes each. It rewards steadiness, and careless slips there cost the same as errors anywhere else.
The fix: Practise short timed sets rather than long untimed ones, so the pace becomes familiar.
Not showing the method on long-answer questions
These questions require the working to be shown. A correct final answer with no visible method cannot be awarded the marks allocated to the steps.
The fix: Write each step on its own line. A 5-mark question is asking for several stages, not one number.
Changing the unit given in the question
Any unit required in an answer is provided, and the answer must be given in that unit. Converting to something more convenient loses the mark even when the number is right.
The fix: Check the unit printed beside the answer space before writing, and convert to it rather than away from it.
Guessing on multiple choice without eliminating
Booklet A has 18 questions worth 26 marks, and the 2-mark items are not the same difficulty as the 1-mark ones. A blind guess wastes a question that elimination often solves.
The fix: Rule out the impossible options first. On a 4-option question, removing two turns a guess into a coin flip.
Learning heuristics as named recipes
Model drawing, working backwards and guess-and-check are strategies for reading a problem, not labels to match to it. Pupils taught to name the method often cannot start an unfamiliar question.
The fix: Practise deciding what the question is asking before choosing an approach, on problems that have not been pre-sorted by topic.
Only practising questions from the current topic
Topic-sorted worksheets tell the pupil the method before they read the question, which is the one help the exam will not give.
The fix: Mix topics deliberately. Past papers do this naturally, which is part of why they are worth more than worksheets.
Leaving no time to check
Both papers are on the same day with a break in between, and 45 questions across 2 hours 30 minutes leaves little slack for a pupil who has never practised finishing early.
The fix: Build in a checking habit: re-read what the question asked, and confirm the answer is in the unit given.
Examination format, mark allocations and the marking rules for each item type are from the PSLE Mathematics syllabus 0008, for examination from 2026, published by SEAB. Always check the current syllabus for your exam year.
Continue your revision
- PSLE Mathematics guideHeuristics, model drawing and Paper 2 problem sums.
- PSLE English guideComposition, comprehension and oral across both papers.
- PSLE Science guideOpen-ended answering technique and the themes examined.
- PSLE Chinese guidePaper weightings, oral technique and vocabulary building.
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