GCE O-Level Maths Help & Practice

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1Numbers and Relations
2Number Theory
3Adding and Subtracting Integers
4Multiplying and Dividing Integers
5Operations with decimals
6Adding and Subtracting Fractions
7Multiplying and Dividing Fractions
8Ratios, Rates, and Proportions
9Percents
10Solving Linear Equations
11Linear Inequalities
12Measuring Systems
13Number Systems
14Surds
15Direct and Inverse Proportion
16Algebraic Expressions
17Linear Functions
- 17.1Distance formula:
- 17.2Midpoint formula:
- 17.3Gradient equation:
- 17.4Gradient intercept form: y = mx + b
- 17.5General form: Ax + By + C = 0
- 17.6Gradient-point form:
- 17.7Rate of change
- 17.8Graphing linear functions using table of values
- 17.9Graphing linear functions using x- and y-intercepts
- 17.10Graphing from slope-intercept form y=mx+b
- 17.11Graphing linear functions using a single point and gradient
- 17.12Word problems of graphing linear functions
- 17.13Applications of linear relations
- 17.1Distance formula:
18Simultaneous Equations
- 18.1Determining number of solutions to linear equations
- 18.2Solving simultaneous linear equations by graphing
- 18.3Solving simultaneous linear equations by elimination
- 18.4Solving simultaneous linear equations by substitution
- 18.5Money related questions in linear equations
- 18.6Unknown number related questions in linear equations
- 18.7Distance and time related questions in linear equations
- 18.8Rectangular shape related questions in linear equations
- 18.1Determining number of solutions to linear equations
19Factorising Quadratic Functions
- 19.1Factorise by taking out the greatest common factor
- 19.2Factorise by grouping
- 19.3Factorising perfect square trinomials: (a + b)^2 = a^2 + 2ab + b^2 or (a - b)^2 = a^2 - 2ab + b^2
- 19.4Factorising difference of squares: (a - b)(a + b) = (a^2 - b^2)
- 19.5Factorising trinomials
- 19.6Solving polynomials with unknown coefficients
- 19.7Solving polynomials with unknown constant terms
- 19.1Factorise by taking out the greatest common factor
20Quadratic Functions
- 20.1Introduction to quadratic functions
- 20.2Transformations of quadratic functions
- 20.3Quadratic function in general form: y = ax^2 + bx + c
- 20.4Quadratic function in vertex form: y = a(x-p)^2 + q
- 20.5Completing the square
- 20.6Converting from general to vertex form by completing the square
- 20.7Shortcut: Vertex formula
- 20.8Graphing quadratic functions: General form VS. Vertex form
- 20.9Finding the quadratic functions for given parabolas
- 20.10Applications of quadratic functions
- 20.1Introduction to quadratic functions
21Solving Quadratic Equations
22Algeraic Fractions
- 22.1Simplifying algebraic fractions and restrictions
- 22.2Adding and subtracting algebraic fractions
- 22.3Multiplying algebraic fractions
- 22.4Dividing algebraic fractions
- 22.5Solving equations with algebraic fractions
- 22.6Applications of equations with algebraic fractions
- 22.7Simplifying complex fractions
- 22.8Partial fraction decomposition
- 22.1Simplifying algebraic fractions and restrictions
23Laws of Indices
24Exponential Functions
25Vectors
26Matrices
27Geometry and Measurement
28Scale Factors and Similarity
29Congruent Triangles
30Angles, Lines, and Transversals
31Circles
32Surface Area and Volume
33Trigonometry
- 33.1Use sine ratio to calculate angles and sides (Sin = )
- 33.2Use cosine ratio to calculate angles and sides (Cos = )
- 33.3Use tangent ratio to calculate angles and sides (Tan = )
- 33.4Combination of SohCahToa questions
- 33.5Solving expressions using 45-45-90 special right triangles
- 33.6Solving expressions using 30-60-90 special right triangles
- 33.7Word problems relating ladder in trigonometry
- 33.8Word problems relating guy wire in trigonometry
- 33.9Other word problems relating angles in trigonometry
- 33.1Use sine ratio to calculate angles and sides (Sin = )
34Angle Measure in Radian
35Sine Rule and Cosine Rule
36Bearings
37Set Theory
38Data and Graphs
39Representing Data
40Statistics
41Probability
