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Primary 3 Maths exam paper analysis: 2021

PaperLah has 31 Primary 3 Maths exam papers from 2021, set by 10 Singapore primary schools, with 848 questions worth 1,431 marks. The topics carrying the most marks were Multiplication and division (16%), Whole numbers (13%) and Addition and subtraction (11%); together the top 4 topics account for half of all marks. Whole numbers appears in 77% of the papers. Multiple-choice questions make up 31% of marks, and 5.9% of questions are worth 3 marks or more, which usually means showing working. A typical paper has about 27 questions and 46 marks.

Based on 31 papers from 10 schools · Updated 2026-10-13

These figures describe the school papers in PaperLah's collection, not official MOE or SEAB weightings. They help with planning revision; they can't predict a particular exam.

Compared with all years: Multiplication and division took 16% of marks in 2021 (all years: 18%); Whole numbers took 13% of marks in 2021 (all years: 13%); Addition and subtraction took 11% of marks in 2021 (all years: 11%).

31papers from 10 schools
27questions in a typical paper
46marks in a typical paper
4topics carry half of all marks

Where the marks are

Topics ranked by their share of all marks. The blue ones above the line together make up half.

Multiplication and divisionin 20 of 31 papers16.5%
Whole numbersin 24 of 31 papers13.3%
Addition and subtractionin 23 of 31 papers11.1%
Fractionsin 19 of 31 papers10.1%
Above this line: 4 topics carry half of all marks
Moneyin 24 of 31 papers8.5%
Timein 15 of 31 papers5.9%
Word problemsin 17 of 31 papers5%
Bar graphsin 15 of 31 papers4.7%
Area and perimeterin 12 of 31 papers4.5%
Lengthin 18 of 31 papers4.1%
Show as table
Topic% of marksPapers
Multiplication and division16.5in 20 of 31 papers
Whole numbers13.3in 24 of 31 papers
Addition and subtraction11.1in 23 of 31 papers
Fractions10.1in 19 of 31 papers
Money8.5in 24 of 31 papers
Time5.9in 15 of 31 papers
Word problems5in 17 of 31 papers
Bar graphs4.7in 15 of 31 papers
Area and perimeter4.5in 12 of 31 papers
Length4.1in 18 of 31 papers
Mass3.4in 17 of 31 papers
Number patterns3.1in 20 of 31 papers
Volume2.8in 17 of 31 papers
Angles1.7in 11 of 31 papers
Tables and graphs1.5in 6 of 31 papers
Ratio0.9in 5 of 31 papers
Measurement and units0.6in 4 of 31 papers
Lines0.6in 4 of 31 papers
Picture graphs0.5in 3 of 31 papers
Equal intervals0.3in 1 of 31 papers
Position and direction0.2in 2 of 31 papers
Age problems0.2in 1 of 31 papers
2D shapes0.1in 1 of 31 papers
Factors and multiples0.1in 1 of 31 papers
Solid figures and nets0.1in 1 of 31 papers
Equal spacing0in 1 of 31 papers

What a paper is made of

How children answer, as a share of marks.

  • Number answer 59%
  • Multiple choice 31%
  • Short answer 5%
  • Drawing or labelling 2%
  • Other 3%
Show as table
Format% of marks
Number answer59.3
Multiple choice30.7
Short answer5.1
Drawing or labelling1.8
Fill in the blank1.7
Open-ended (show working)1.2
Other0.1

Marks per question

Share of questions worth 1, 2, 3, 4 or 5+ marks. 7% have no marks printed. Higher-mark questions usually need working.

1: 24% of questions24%12: 63% of questions63%23: 5% of questions5%34: 1% of questions1%4
Show as table
Marks% of questions
124.4
262.9
34.7
41.2

How likely a topic comes up

The share of papers with at least one question on the topic.

Whole numbers77.4%
Money77.4%
Addition and subtraction74.2%
Multiplication and division64.5%
Number patterns64.5%
Fractions61.3%
Length58.1%
Word problems54.8%
Mass54.8%
Volume54.8%
Show as table
Topic% of papers
Whole numbers77.4
Money77.4
Addition and subtraction74.2
Multiplication and division64.5
Number patterns64.5
Fractions61.3
Length58.1
Word problems54.8
Mass54.8
Volume54.8
Time48.4
Bar graphs48.4
Area and perimeter38.7
Angles35.5
Tables and graphs19.4
Ratio16.1
Measurement and units12.9
Lines12.9
Picture graphs9.7
Position and direction6.5
Equal intervals3.2
2D shapes3.2
Age problems3.2
Equal spacing3.2
Factors and multiples3.2
Solid figures and nets3.2

Exam types

Which school exams these papers come from.

Weighted Assessment / CA13 papers41.9%
Quiz / Review / Test7 papers22.6%
Practice paper4 papers12.9%
End-of-Year / SA24 papers12.9%
Other3 papers9.7%

Key facts

  • 31 papers, 848 questions, 1,431 marks, from 10 schools.
  • 4 topics carry half of all marks.
  • Most-tested topic: Multiplication and division, 16% of marks.
  • Most common topic across papers: Whole numbers, in 77% of papers.
  • 5.9% of questions are worth 3 marks or more.
  • Exam types: Weighted Assessment / CA, Quiz / Review / Test, Practice paper, End-of-Year / SA2 and Other.

Questions parents ask

What topics come up most in Primary 3 Maths exam papers in 2021?

By share of marks, the most-tested topics were Multiplication and division (16%), Whole numbers (13%), Addition and subtraction (11%), Fractions (10%) and Money (8.5%).

How many questions and marks are in a Primary 3 Maths paper?

A typical paper in this set has about 27 questions and 46 marks. Papers vary by school and by exam (weighted assessments are shorter than mid-year and end-of-year exams).

Which exams and schools are included?

31 papers from 10 schools, from these exam types: Weighted Assessment / CA, Quiz / Review / Test, Practice paper, End-of-Year / SA2 and Other. The schools are listed further down this page.

Can I download these papers?

No. PaperLah doesn't share the papers as downloads. Children practise them online one question at a time, with instant marking, and parents see which topics need work.

Schools included

ACS (Junior) · ACS (Primary) · Ai Tong · Anglo-Chinese School · CHIJ · CHIJ St Nicholas Girls' · Catholic High · Henry Park · Maha Bodhi · Maris Stella High · Methodist Girls' · Nan Hua · Nanyang · Northland · Paya Lebar Methodist Girls' · Pei Chun · Pei Hwa · Raffles Girls' · Red Swastika · River Valley · Rosyth · Rulang · Singapore Chinese Girls' · St Hilda's · St Joseph's · Tao Nan · Temasek · Yang Zheng

Schools with Primary 3 Maths papers in the collection (all years). Papers are past school assessments; PaperLah is not affiliated with MOE, SEAB or the schools.

How this analysis is made

Every question in each paper is tagged with its topic, format and marks as printed. The figures above are counts over those questions: a topic's share of marks, the share of papers that include it, and so on. Topic names come from the papers and their answer keys, so similar topics can appear under slightly different names. Only aggregate figures are shown here; the questions themselves are practised inside PaperLah.

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