01 · The basics
What is A-Math?
A-Math is short for Additional Mathematics. It is an extra Math subject in Sec 3 and Sec 4, taken on top of E-Math.
You will also see it written as AMath, A Math or A Maths. E-Math (Elementary Mathematics, often written EMath) is the normal Math subject every student takes.
Algebra
Much more than E-Math: quadratics, surds, polynomials, logarithms.
Trigonometry
Graphs, identities and equations. Not just triangles.
Calculus
Differentiation and integration, in Sec 4.
Result slip
E-MathA1
A-MathF9
Two subjects. Two grades.
A-Math has its own exam and its own grade. An A1 in E-Math and an F9 in A-Math on the same slip is possible.
SEAB's syllabus says A-Math "prepares students adequately for A-Level H2 Mathematics", for students "who have an aptitude and interest in mathematics".
02 · Side by side
A-Math vs E-Math: what is the difference?
AMath and EMath compared, for a student taking both at G3 (the old Express level).
Who takes it
Every student (compulsory)
Students offered it (elective)
When
Sec 1 to Sec 4
Sec 3 and Sec 4 only
Levels
G1, G2 or G3
G2 or G3 (no G1)
Topics
Numbers, algebra, geometry, statistics, money problems
Algebra, trigonometry, circles, calculus
Questions
Many short ones, plus one real-life problem
Fewer, longer, multi-step; "show that" proofs
Problem solving
Mixed with routine questions
About half the marks (a third for routine skills)
Exam (G3)
2 papers · 2 h 15 min · 90 marks each
2 papers · 2 h 15 min · 90 marks each
Leads to
Counts for every route after Sec 4
JC H2 Math, then university courses
Source: SEAB syllabuses 4052 (E-Math) and 4049 (A-Math), compared by Math Vigilante.
A-Math leans on E-Math. SEAB's syllabus "assumes knowledge of O-Level Mathematics". Weak Sec 1 and 2 algebra is the most common reason a Sec 3 student struggles in A-Math.
03 · The big change
From Sec 2 to Sec 3: what changes
Parents still call it "Sec 3 streaming". There are no streams now under Full Subject-Based Banding, but the end of Sec 2 is still when subjects are picked.
- 1
Math becomes two subjects
E-Math carries on. A-Math starts as a second subject, often with its own teacher and lessons.
- 2
The school offers A-Math, based on Sec 2
At the end of Sec 2 your child picks a subject combination. The school decides who gets A-Math, mostly from Sec 2 Math results.
- 3
A-Math starts fast
No warm-up. Sec 3 opens with quadratics, inequalities, surds and polynomials: all algebra, from week one.
- 4
Two grades on every report
Every WA and exam tests them separately. A good E-Math grade does not carry A-Math.
- 5
Tuition splits too
One Sec 2 Math class now has two subjects to cover. Most centres, us included, teach them as two classes.
What we see in class
The first A-Math chapters are pure algebra. A student who got by in Sec 2 with weak algebra usually feels it within weeks.
The best time to fix it: the November and December holidays before Sec 3.
04 · The question everyone asks
Is A-Math compulsory?
No MOE rule makes A-Math compulsory. Each school decides how it offers it, and policies differ:
Some schools
A-Math is part of the standard combination for students taking all subjects at G3.
Other schools
An elective offered by merit. Cut-offs we have seen in schools' 2026 briefings: 50% to a B3 or B4 in Sec 2 Math.
- Meeting the cut-off does not always guarantee a place. Schools allocate by merit.
- A-Math is offered at G3 and G2. There is no G1 A-Math. Some schools let a G3 Math student take G2 A-Math.
- Dropping A-Math later? Some schools allow it in Sec 3, by a set date. Ask your child's school.
Not sure if your child should take A-Math?
Send us their Sec 2 Math results. We will tell you honestly if A-Math looks like a fit, and what to work on before Sec 3.
Ask us on WhatsApp05 · After Sec 4
Is A-Math useful? Where it leads
Whether A-Math is "necessary" depends on where your child is heading.
Junior College: H2 Math
AssumedH2 Math assumes A-Math. Some JCs set an indicative cut-off of B4 in A-Math, and students without it are usually advised to take H1 Math.
What the JCs and SEAB say
- SEAB: the H2 Math syllabus assumes O-Level A-Math. H1 Math is "particularly appropriate for students without O-Level Additional Mathematics".
- National JC: H2 Math indicative cut-off "B4 in O-Level Additional Mathematics; or A2 in O-Level Mathematics". Students without A-Math are "strongly recommended to take H1 Mathematics".
- Anglo-Chinese JC: "a minimum B4 grade in 'O' Level Additional Mathematics" recommended for H2 Math.
- Temasek JC and Nanyang JC: O-Level A-Math is the assumed knowledge for H2 Math.
- Eunoia JC: H2 Further Mathematics has an indicative cut-off of A1 in A-Math.
University
Via H2 MathMany degree courses ask for H2 Math, so A-Math matters even before JC. Examples: NUS Computer Engineering and NTU Environmental Engineering both require an H2 Math pass.
Polytechnic
OptionalNot required. MOE lists the requirement as "Additional Mathematics / Mathematics", so either subject meets it. A-Math can still help: if it is your child's better math grade, it can be the one counted in ELR2B2.
New from the 2028 JC intake
For students who started Sec 1 in 2024 or later, JC admission uses L1R4, and every subject counted must be at G3. The Math requirement is "G3 Mathematics or G3 Additional Mathematics: A1 to D7". So G2 A-Math does not count towards a JC aggregate.
Even if your child never uses calculus again: A-Math trains careful, multi-step algebra, and students who take it usually find E-Math algebra easier.
Sources: SEAB, MOE and the JCs' own pages, listed at the end (checked October 2026). Requirements change, so check the school's current page before applying.
06 · Deciding
Should my child take A-Math?
A good fit if
- Your child scored well in Sec 2 Math, especially in algebra.
- They may want JC, or a science, engineering, computing, economics or business course later.
- They are willing to practise regularly. A-Math rewards steady work, not last-minute cramming.
Think it through if
- Your child is still passing E-Math with difficulty. A strong E-Math grade counts in every route after Sec 4.
- Their algebra is shaky. Fix that first: it is the base A-Math stands on.
- Their timetable is already full. A-Math takes regular weekly practice.
Still unsure? Ask your child's Math teacher before the form is due. They have seen the Sec 2 work, and the school makes the final call.
07 · Two-year roadmap
What your child learns in A-Math
Algebra and trigonometry in Sec 3. Calculus in Sec 4. This is the order we teach it; schools follow a similar path.
Sec 3
- Quadratic functions
- Inequalities and the discriminant
- Surds
- Polynomials and cubic equations
- Partial fractions
- Binomial theorem
- Exponential and logarithmic functions
- Coordinate geometry
- Circles
- Linear law
- Trigonometric functions and graphs
- Trigonometric equations
- Trigonometric identities and the R-formula
Sec 4
- Differentiation
- Applications of differentiation (tangents, rates of change, maximum and minimum)
- Differentiating trigonometric, exponential and logarithmic functions
- Integration
- Applications of integration (area under a curve)
- Kinematics
- Proofs in plane geometry
- Revision: binomial, circles, linear law
Content from SEAB syllabus 4049; order from Math Vigilante's own Sec 3 and Sec 4 A-Math classes.
G2 A-Math (formerly N(A) A-Math): what is different?
A-Math is also offered at G2. SEAB writes that it prepares students "adequately for G3 Additional Mathematics". It shares the core topics, leaves several out, and is more routine: half its marks are for standard techniques, against about a third at G3.
| Topic | G3 A-Math | G2 A-Math |
|---|---|---|
| Quadratics, surds, polynomials, partial fractions | Yes | Yes |
| Trigonometric functions, identities and equations | Yes | Yes |
| Coordinate geometry, including circles | Yes | Yes (no two-circle problems) |
| Differentiation and integration of powers of x | Yes | Yes |
| Binomial expansions | Yes | Not in G2 |
| Exponential and logarithmic functions | Yes | Not in G2 |
| Linear law | Yes | Not in G2 |
| Proofs in plane geometry | Yes | Not in G2 |
| Calculus of trigonometric, exponential and log functions | Yes | Not in G2 |
| Kinematics | Yes | Not in G2 |
Source: SEAB syllabuses 4049 and 4051 (from 2027: K341 and K232), compared by Math Vigilante.
08 · The exam
The A-Math exam
Paper 1
90 marks
2 h 15 min · 12 to 14 questions
Paper 2
90 marks
2 h 15 min · 9 to 11 questions
- Answer all questions. No choices, so no topic can be skipped.
- Calculator allowed in both papers.
- A formula sheet is given, but it is short. Logarithm laws, the derivatives of sin x and eˣ and more must be memorised. Our A-Math Paper 1 page lists them.
- From 2027 it is the SEC exam, which replaces the O-Level and N-Level. SEAB says the standard does not change.
G2 A-Math exam, and the new syllabus codes
| Paper | G3 A-Math (4049) | G2 A-Math (4051) |
|---|---|---|
| Paper 1 | 2 h 15 min, 90 marks. 12 to 14 questions, up to 10 marks each. Answer all. | 1 h 45 min, 70 marks. 13 to 15 questions. Answer all. |
| Paper 2 | 2 h 15 min, 90 marks. 9 to 11 questions, up to 12 marks each. Answer all. | 1 h 45 min, 70 marks. 8 to 10 questions. Answer all. |
| Calculator | Allowed in both papers | Allowed in both papers |
| Formula sheet | Given, but many formulas are not on it | Given, but many formulas are not on it |
| Subject | Syllabus to 2026 | SEC syllabus from 2027 |
|---|---|---|
| G3 A-Math | 4049 | K341 |
| G2 A-Math | 4051 | K232 |
| G3 Math (E-Math) | 4052 | K310 |
| G2 Math | 4045 | K210 |
Sources: SEAB syllabuses 4049 and 4051 (2026); SEAB's 2027 SEC syllabus lists.
09 · Why students struggle
Why A-Math feels hard (and what helps)
It is algebra all the way down
Nearly every A-Math question is solved with algebra. A slip with a negative sign or a bracket in line two loses the rest of the question.
What helps: Strong Sec 1 and 2 algebra before Sec 3, and clean, line-by-line working.
"Show that" and proof questions
Some marks are for explaining and proving, not just getting a number. Students who only memorise steps lose these marks.
What helps: Practise writing the reason for each step, the way the mark scheme expects it.
Trigonometry is new territory
E-Math trigonometry is about triangles. A-Math trigonometry is about graphs, identities and equations with many answers.
What helps: Learn the graphs first; identities and equations make sense after that.
Calculus in Sec 4
Differentiation and integration arrive in the same year as the O-Level exam.
What helps: Keep Sec 3 topics strong. Calculus questions reuse Sec 3 algebra, trigonometry and logarithms.
Formulas the sheet does not give
The formula sheet is short. Many results must be memorised.
What helps: One memorise list, revised a little every week, not the night before.
10 · Proof
A-Math results from our students
You want to know we can actually teach A-Math. Here is what our students sent us: their school papers and messages, with names hidden.
Swipe for more. Tap a card to see it full size.
From C6 to high A1 (92%)
Sec 4 G3 A-Math · Prelim 2025 · Hai Sing Catholic
Consistent A1: 29/30 (97%)
Sec 4 G3 A-Math · WA1 2026 · Bedok Green Secondary
Consistent A1 for A-Math (77%)
Sec 4 G3 A-Math · WA1 2026 · CHIJ Secondary
A1: 24/30 (80%)
Sec 3 G3 A-Math · WA1 2026 · Kuo Chuan Presbyterian
A1: 15/20 (75%)
Sec 3 G3 A-Math · WA1 2026 · Holy Innocents' High
High A1: 26/30 (87%)
Sec 3 G3 A-Math · WA3 2025 · Serangoon Secondary
First ever A1 for A-Math: 23/30
Sec 3 G3 A-Math · WA3 2025 · Nan Hua High
From fail to A1 in only 2 months
Sec 4 Express A-Math · Chung Cheng High
From C5 to A1 in 5 months
Sec 3 Express A-Math · St. Joseph's Institution
High A1 for Sec 4 prelims: 97.8% and 83.7%
Sec 4 Express A-Math · Tanjong Katong Girls'
First-ever full marks
Sec 3 Express A-Math · Tanjong Katong Girls'
Double A1 for EOY: A-Math 91%, E-Math 79.5%
Sec 3 Express E-Math and A-Math · Tanjong Katong Girls'
Double A1 in only 1 month
Sec 3 Express E-Math and A-Math · Tanjong Katong Girls'
Double A1 for WA1 2022: A-Math 87%, E-Math 80%
Sec 3 Express E-Math and A-Math · Serangoon Gardens Sec
Double A1 for WA2 2022: A-Math 77%, E-Math 90%
Sec 3 Express E-Math and A-Math · Serangoon Gardens Sec
In their own words
★★★★★
"I improve my Amath score from F9 to A2 ! The lessons at Math Vigilante really helped understand concepts I struggled with and eventually allowing me to score ! The tutors explain everything clearly and helped me understand rlly quick"
★★★★★
"I never passed A math since Sec 3, but I really improved and got A1 for my recent Sec 4 WA2 as the tutors here were able to explain concepts very clearly allowing me to understand the subject very well very easily and quickly."
★★★★★
"Before I went to tuition, my A-math was F9, but after going my A math improved and now it's around B4 to A1."
"When starting, my results weren't very good with me being almost clueless with AMath. But, Mr. Lai was patient with me and taught me the topics that I was uncertain about. … Even after lessons, if I had any questions or doubts, Mr. Lai goes the extra mile and help me in his own time."
11 · Classes and fees
A-Math tuition: one class or two?
Two. EMath and AMath are different subjects with different exams, so our AMath tuition is its own 2-hour class, separate from EMath.
One class that "covers both" spends half its time on each. Your child gets half the practice in both.
- A separate A-Math class, 2 hours a week, at the A-Math pace. E-Math gets its own class.
- Small classes, so the tutor sees your child's working, not just the final answer.
- Our own notes for every chapter, in the order above.
- Joining in Sec 3? After the trial lesson, our Post Trial Analysis & Feedback tells you which Sec 1 and 2 algebra gaps to close first.
- Physical classes at Katong, Hougang Central and Opp Hougang CC.
A-Math only
$300
4 lessons × 2 h ($75 each)
New families from 1 Jan 2027: $320
Double Math (E + A)
$560
8 lessons × 2 h ($70 each)
New families from 1 Jan 2027: $600
E-Math only
$300
4 lessons × 2 h ($75 each)
New families from 1 Jan 2027: $320
- Families enrolled by 31 December 2026 keep the 2026 rate for the whole of 2027.
- Registration fee $50, waived when your child starts by 30 November 2026 or is referred by a current Math Vigilante family.
- Financial assistance (FAS) is available. No GST.
Trials are paid lessons, by appointment. After it, we tell you in writing where your child is losing marks: our Post Trial Analysis & Feedback.
More: Secondary G3 E-Math and A-Math classes · G2 Math tuition · how we teach · Katong · Hougang
12 · Quick answers
Frequently asked questions
1What is A-Math?
A-Math (Additional Mathematics) is an elective Math subject for Sec 3 and Sec 4 in Singapore. It is taken on top of E-Math and covers algebra, trigonometry and calculus in more depth. SEAB designed it to prepare students for A-Level H2 Mathematics.
2What is the difference between E-Math and A-Math?
E-Math (Elementary Mathematics) is the compulsory Math subject. It covers a broad range: numbers, algebra, geometry, mensuration, statistics, probability and real-life problems. A-Math is an extra subject that goes deeper into algebra, trigonometry, coordinate geometry and calculus. They are examined separately and give two separate grades.
3Is A-Math compulsory in Singapore?
No. E-Math is compulsory for every secondary student. A-Math is an elective, offered by the school at the end of Sec 2, usually based on Sec 2 Math results.
4Is A-Math necessary for JC?
For H2 Math, effectively yes. No JC formally bars a student without A-Math, but H2 Math assumes A-Math knowledge, and some JCs set an indicative cut-off of B4 in A-Math. Students without A-Math are usually advised to take H1 Math instead. A-Math is not needed for JC admission itself: from 2028, either G3 Math or G3 A-Math meets the Math requirement.
5Can my child take H2 Math in JC without A-Math?
It is possible at some JCs, for example with a strong E-Math grade (National JC lists A2 in O-Level Math as an alternative), but your child will be catching up on A-Math content in J1. Several JCs advise H1 Math for students who did not take A-Math.
6Is A-Math needed for poly?
No. MOE's poly entry requirements list "Additional Mathematics / Mathematics", so either subject meets the math requirement. A good A-Math grade can count as a relevant subject in the ELR2B2 aggregate for many courses.
7What Sec 2 result does my child need to take A-Math?
Each school sets its own bar. In schools' own 2026 briefings we have seen 50% in Sec 2 Math, 70%, and a B3 or B4 grade. Meeting it does not always guarantee a place, because schools allocate by merit when places are limited. Ask your child's school for its criteria.
8Should my child take G3 or G2 A-Math?
G3 A-Math is the one that counts towards JC admission from 2028 and leads into H2 Math. G2 A-Math is lighter: it leaves out binomial expansions, logarithms, linear law, plane-geometry proofs, kinematics and the calculus of trigonometric and exponential functions. It builds a base for G3 A-Math later.
9Is there G1 A-Math?
No. A-Math is offered at G2 and G3 only.
10Is A-Math useful if my child is not going to JC?
It can be. It keeps science, engineering and computing options open, and the extra algebra practice usually helps E-Math. But a strong E-Math grade matters more for most poly courses, so do not let A-Math pull E-Math down.
11Can my child take A-Math without E-Math?
No. Math (E-Math) is compulsory, and the A-Math syllabus assumes E-Math knowledge. Students who take A-Math take both.
12Is A-Math harder than E-Math?
Most students find it harder. About half the A-Math marks are for solving problems, and the algebra runs over many lines. The difference is depth, not speed: steady weekly practice works better than cramming.
13When does A-Math start?
In Sec 3, Term 1. Algebra and trigonometry are taught in Sec 3, and calculus in Sec 4. The exam is at the end of Sec 4.
14Can my child drop A-Math?
Some schools allow it in Sec 3, usually by a set date and after a discussion with the school. The rules differ by school, so ask your child's school.
15Does my child need separate tuition for E-Math and A-Math?
Usually, yes. They are two subjects with different exams, and one class covering both halves the practice for each. At Math Vigilante they are separate 2-hour classes, with a Double Math bundle for students taking both.
16What is G2 A-Math?
G2 A-Math (formerly N(A) A-Math, from 2027 SEC syllabus K232) is A-Math at the G2 level under Full SBB. It covers the main A-Math topics, leaves out several, and its two papers are 1 hour 45 minutes and 70 marks each.
17What should my child revise before starting A-Math in Sec 3?
Sec 1 and 2 algebra: expanding and factorising, algebraic fractions, changing the subject of a formula, and solving quadratic and simultaneous equations. The first Sec 3 A-Math chapters use all of these from week one.
18When should A-Math tuition start?
Ideally before the first A-Math test, not after it. The November and December holidays before Sec 3 are the best time to fix algebra gaps. If your child is already in Sec 3 or 4 and struggling, start as soon as you can: each chapter builds on the last.
Still deciding about A-Math?
Send us your child's Sec 2 Math results on WhatsApp. We will tell you honestly whether A-Math looks like a fit, and what to work on before Sec 3.
Ask us about A-MathRelated
Sources (19 official pages)
- SEAB: G3 Additional Mathematics syllabus K341 (2027)
- SEAB: G2 Additional Mathematics syllabus K232 (2027)
- SEAB: O-Level Additional Mathematics syllabus 4049 (2026)
- SEAB: G3 syllabuses for the 2027 SEC
- SEAB: Singapore-Cambridge Secondary Education Certificate (SEC)
- SEAB: A-Level H2 Mathematics syllabus 9758
- SEAB: A-Level H1 Mathematics syllabus 8865
- MOE: Full Subject-Based Banding, secondary school experience
- MOE: JAE changes from 2028
- MOE: 2027 JAE aggregate types, incl. ELR2B2 relevant subjects (PDF)
- MOE: 2027 JAE minimum entry requirements (PDF)
- National JC: indicative cut-off points for subjects
- Anglo-Chinese JC: Mathematics
- Temasek JC: subject combinations
- Nanyang JC: subject combinations
- Eunoia JC: subject combinations
- NUS Computer Engineering: admissions
- NTU Environmental Engineering: admission
- SEAB: 2026 O-Level timetable (PDF)
Disclaimer
This guide summarises the SEAB syllabuses and MOE's and the schools' published requirements as at 13 October 2026, plus Math Vigilante's own teaching experience. Math Vigilante is not affiliated with MOE, SEAB or any school, and this page is not reviewed or endorsed by them.
Each school decides how it offers A-Math, and admission requirements change every year. Check with your child's school and the JC or polytechnic before making a decision. The wording and analysis are © 2026 Math Vigilante.
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