How WASSCE Mathematics is set and marked (and what that means for you)

WASSCE General Mathematics (also called Core Mathematics) is taken as two papers. You sit both, and your grade comes from the two together. According to WAEC's syllabus for General Mathematics, the scheme is:

Paper 2 is split into Section A, with five compulsory questions worth 40 marks in total, and Section B, with eight longer questions of which you choose five, worth 60 marks in total. Across both papers there are 150 marks and four hours of writing.

💡 Tip: Paper 2 is worth twice as much as Paper 1. Students often spend most of their practice on objective questions because they are quick to mark. Make sure at least half of your practice time goes on full written solutions.

The questions are drawn from the whole General Mathematics syllabus, which WAEC groups into these areas:

• Number and numeration: number bases, modular arithmetic, fractions, decimals, approximation, indices, logarithms, sequences and series, sets, variation.
• Algebraic processes: expressions, linear and quadratic equations, simultaneous equations, inequalities, algebraic fractions, change of subject.
• Mensuration: lengths, areas, surface areas and volumes of plane shapes and solids, arcs and sectors.
• Plane geometry: angles, triangles, polygons, circle theorems, constructions and loci.
• Coordinate geometry: gradient, distance, midpoint, equation of a straight line.
• Trigonometry: ratios, angles of elevation and depression, bearings, sine and cosine rules.
• Introductory calculus: differentiation and integration of simple algebraic functions.
• Statistics and probability: frequency tables, charts, measures of central tendency and spread, cumulative frequency, probability.
• Vectors and transformations.

Notice how wide this is. WASSCE is not a test of SS 3 alone; many Paper 1 questions and most Section A questions test work you first met in JSS and SS 1. That is good news: it means steady revision of older topics pays off directly.

Each objective question has one correct option. Your score is simply the number you get right. There are no marks for working on Paper 1, so the only thing that counts is the option you shade.

With 50 questions in 90 minutes, you have about 1 minute 48 seconds per question. Some questions take ten seconds (reading a value from a table, simplifying a fraction); others take three minutes. The skill is not to get stuck: a question that is eating time should be marked, skipped and revisited at the end.

💡 Tip: Practise Paper 1 with a timer. MathPlug's WASSCE mock exam uses the same 50 questions in 1½ hours, so you can learn what that pace feels like before the real day.

Paper 2 is where many candidates lose marks they could have kept. Examiners mark your written solution using a marking scheme that gives marks for the steps of a correct method, not only for the final answer. In general terms, that means:

• A correct method with a small slip at the end usually still earns most of the marks for that part.
• A correct final answer with no working shown can earn very little, because the examiner cannot see how you got it.
• If you make an early mistake but then use a correct method with your wrong value, you can still earn the later method marks.
• Diagrams, constructions and graphs are marked for accuracy and labelling, not just for being present.

Here is the kind of difference this makes. Two students answer the same question:

Examiners' comments on past papers often make the same points year after year: candidates do not show working, misread what the question asks for, round too early, leave answers without units, and draw constructions without the arcs that prove the construction was done. Each of these is a habit you can fix through practice.

Your result is reported as a grade from A1 (excellent) down to F9 (fail). The grades in between are B2, B3 (very good, good), C4, C5, C6 (credit), D7, E8 (pass) and F9.

The grade that matters most for most students is a credit, C6 or better. A credit in Mathematics is required for admission to most university and polytechnic courses in Nigeria, whatever you plan to study. Science, engineering, economics and business courses may ask for more, so check the requirements for your chosen course.

WAEC does not publish the exact score needed for each grade, and you will see different figures quoted online (for example, that an A1 needs about 75%). Treat any such numbers as rough guides only. The safest target is simple: aim to master every topic in Section A and five topic areas in Section B, and the grade will follow.

WAEC allows non-programmable, silent, cordless calculators. Phones are not allowed in the hall, even switched off, and that includes using a phone as a calculator. Mathematical tables are part of the syllabus (for example for logarithms and trigonometric ratios), so practise reading them even if you normally use a calculator.

• Use the same calculator for all your revision that you will take into the exam, so you know exactly where every key is.
• Learn how your calculator handles degrees (it must be in DEG mode for trigonometry), fractions and powers.
• Pack a spare battery or a second approved calculator if you can.

Here is how the facts above should shape your preparation:

1. Cover the core topics first. Section A is compulsory, and its questions come from core areas. You cannot skip them, so no core topic can be a complete gap.
2. Choose five Section B strengths. You answer five of eight long questions. Pick at least six topic areas you will master deeply (one spare), such as statistics, trigonometry, mensuration, circle geometry, sequences or calculus.
3. Practise full written solutions. For every Paper 2 question, write every step as if an examiner who has never met you is reading it.
4. Time yourself on both papers. Paper 1 at under 2 minutes a question; Paper 2 at about 15 minutes a question on average (Section A is usually quicker, Section B slower).
5. Fix the habits examiners complain about. Show working, read the question twice, keep full accuracy until the last line, and write units.

Our 12-week WASSCE study plan puts all of this into a week-by-week timetable, and our Paper 1 vs Paper 2 guide goes deeper into exam-room strategy for each paper.