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CSEC Math LabLearn · practise · master
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CSEC Mathematics9 syllabus sections27 challenge questions
Build your maths,one move at a time.
Learn a compact idea, watch it work, then solve the next move yourself. Every answer strengthens your CSEC mastery map.
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Your mastery map
All nine CSEC sections. One clear path.
Each mission begins with the core idea, shows a worked example and checks your understanding with immediate feedback.
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Section 1 · 12 min
Number Sense
Classify real numbers, recognise useful number properties and choose efficient calculations.
Number setsFractions, decimals and percentagesHCF and LCM+3
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Section 2 · 14 min
Money Maths
Work confidently with discounts, profit, interest, exchange rates and everyday transactions.
Profit and lossDiscountsHire purchase+3
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Section 3 · 11 min
Sets
Use set language and Venn diagrams to organise overlapping groups and solve counting problems.
Set notationSubsetsUnion and intersection+3
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Section 4 · 14 min
Measurement
Choose units, calculate perimeter, area and volume, and reason about scale and accuracy.
SI unitsPerimeter and arc lengthArea and sectors+3
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Section 5 · 13 min
Statistics
Summarise data, select appropriate measures and make careful probability statements.
Samples and variablesFrequency tablesStatistical diagrams+3
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Section 6 · 15 min
Algebra
Translate situations into expressions, manipulate them correctly and solve equations.
ExpressionsSubstitutionIndices+3
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Section 7 · 15 min
Functions
Move between equations, tables and graphs to understand mathematical relationships.
Relations and functionsFunction notationGradient and intercept+3
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Section 8 · 16 min
Geometry
Use geometric properties and trigonometry to solve authentic spatial problems.
Angles and polygonsCongruence and similarityCircle theorems+3
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Section 9 · 15 min
Vectors
Use vectors and matrices to model displacement, combine information and transform the plane.
Vector notationMagnitude and directionVector geometry+3
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