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Short explanations of core topics for O Level, IGCSE and A Level.
0/237 done
2-Forms of Linear Equations
Video · by O/A-Level Mathematics
3 Solutions of Linear Systems Graphically
Video · by O/A-Level Mathematics
3- Forms of Quadratic Equations
Video · by O/A-Level Mathematics
3-Ways of Representing Linear Relations
Video · by O/A-Level Mathematics
Add & Subtract Rational Expressions
Video · by O/A-Level Mathematics
Add Substract Multiply Divide Fractions
Video · by O/A-Level Mathematics
Add Subtract Multiply Divide Decimals
Video · by O/A-Level Mathematics
Adding & Substracting Polynomials
Video · by O/A-Level Mathematics
Addition & Subtraction of Standard Form
Video · by O/A-Level Mathematics
Addition & Subtraction of Surds
Video · by O/A-Level Mathematics
Addition of Time (non-calculator)
Video · by O/A-Level Mathematics
Algebraic Equations
Video · by O/A-Level Mathematics
Algebraic Identities & Expressions
Video · by O/A-Level Mathematics
Algebraic Manipulation
Video · by O/A-Level Mathematics
Ambiguous case of Sine Law for Acute angle II Trigonometry
Video · by O/A-Level Mathematics
Ambiguous case of Sine law for Obtuse angle II Trigonometry
Video · by O/A-Level Mathematics
Angle of Depression OR Declination — Trigonometry
Video · by O/A-Level Mathematics
Angle of Elevation — Trigonometry
Video · by O/A-Level Mathematics
Angle of Elevation / Depression
Video · by O/A-Level Mathematics
Angles: Acute, right, obtuse, reflex, alternate, corresponding, vertically opposite, adjacent,
Video · by O/A-Level Mathematics
Area of a Triangle
Video · by O/A-Level Mathematics
Area of Non-Right angled Triangle
Video · by O/A-Level Mathematics
Arithematic Sequence
Video · by O/A-Level Mathematics
Arithmetic Sequence
Video · by O/A-Level Mathematics
Arithmetic Sequence Examples, Definitions, and Formulas- O/A Level Math
Video · by O/A-Level Mathematics
Arithmetic series Examples, Definitions, and Formula - O/A Level Math
Video · by O/A-Level Mathematics
AS & A Level Pure Mathematics Paper 2 9709/ 21 & 23 Oct/Nov 2021
Video · by O/A-Level Mathematics
Bearing
Video · by O/A-Level Mathematics
Bearing II Trigonometry
Video · by O/A-Level Mathematics
Best ways of graphing two forms of linear equations
Video · by O/A-Level Mathematics
Break even Point — Quadratic Function
Video · by O/A-Level Mathematics
Check inverse is a function by using horizontal line test II Functions
Video · by O/A-Level Mathematics
Circle Geometry Key Definition
Video · by O/A-Level Mathematics
Composite Function
Video · by O/A-Level Mathematics
Conversion Of Time (non-calculator exam)
Video · by O/A-Level Mathematics
Convert Decimals to Fractions
Video · by O/A-Level Mathematics
Convert Fractions to Decimals
Video · by O/A-Level Mathematics
Convert km/h to m/s
Video · by O/A-Level Mathematics
Convert Percentages to Decimals & Fractions
Video · by O/A-Level Mathematics
Convert Standard Form of Quadratic Equation to Factored Form by 2 Methods
Video · by O/A-Level Mathematics
Convert Standard form of Quadratic Equation to Vertex form by 2 Methods
Video · by O/A-Level Mathematics
Cube
Video · by O/A-Level Mathematics
Cubic Sequence
Video · by O/A-Level Mathematics
Cuboid
Video · by O/A-Level Mathematics
Currency Exchange
Video · by O/A-Level Mathematics
Decimals & Fractions to Percentages
Video · by O/A-Level Mathematics
Definition of a Set , Universal Set and Notations
Video · by O/A-Level Mathematics
Derivation of Quadratic Formula
Video · by O/A-Level Mathematics
Distance between a Point & a Line
Video · by O/A-Level Mathematics
Distance between two points
Video · by O/A-Level Mathematics
Distributive property
Video · by O/A-Level Mathematics
Domain & Range
Video · by O/A-Level Mathematics
Domain & Range of Composite Function
Video · by O/A-Level Mathematics
Domain & Range Of Cubic Function
Video · by O/A-Level Mathematics
Domain & Range of Exponential Function
Video · by O/A-Level Mathematics
Domain & Range of Inverse Function
Video · by O/A-Level Mathematics
Domain & Range of Linear Function
Video · by O/A-Level Mathematics
Domain & Range of Quadratic Functions
Video · by O/A-Level Mathematics
Domain & Range of Radical Function
Video · by O/A-Level Mathematics
Domain & Range Of Reciprocal Function
Video · by O/A-Level Mathematics
Equation of a Striaght Line (Overview)
Video · by O/A-Level Mathematics
Equation of Circle & Graphing Circles
Video · by O/A-Level Mathematics
Equation of Median
Video · by O/A-Level Mathematics
Equation of Perpendicular Bisector
Video · by O/A-Level Mathematics
Equation of Perpendicular Bisector
Video · by O/A-Level Mathematics
Exact & Non-Exact Values
Video · by O/A-Level Mathematics
Expanding Quadratic Expressions
Video · by O/A-Level Mathematics
Expanding Quadratic Expressions by Formulas
Video · by O/A-Level Mathematics
Exponential Decay II Exponential function
Video · by O/A-Level Mathematics
Exponential Growth & Decay
Video · by O/A-Level Mathematics
Exponential Growth II Applications of Exponential Function
Video · by O/A-Level Mathematics
Exponential Sequence
Video · by O/A-Level Mathematics
Express one Value as a Percentage of another
Video · by O/A-Level Mathematics
Factorization (all types are covered)
Video · by O/A-Level Mathematics
Factors and Multiples
Video · by O/A-Level Mathematics
Find nth term using nth term of another sequence
Video · by O/A-Level Mathematics
Finding a:b:c given that a:b=2:3 & b:c=4:5 II O level Math D 4024 Question
Video · by O/A-Level Mathematics
Finding Domain & Range from Equations — Functions
Video · by O/A-Level Mathematics
Finding Domain & Range from Graph II Function
Video · by O/A-Level Mathematics
Finding Equation of a Striaght Line using gradient and a point
Video · by O/A-Level Mathematics
Finding Equation of a Striaght Line using graph
Video · by O/A-Level Mathematics
Finding Equation of a Striaght Line using two points
Video · by O/A-Level Mathematics
Finding Gradient and y-intercept from Equations
Video · by O/A-Level Mathematics
Finding Inverse from Equation II Functions
Video · by O/A-Level Mathematics
Finding Inverses from Graphs II Function
Video · by O/A-Level Mathematics
Finding Linear equation from Table
Video · by O/A-Level Mathematics
Finding Linear Equations from Graphs
Video · by O/A-Level Mathematics
Finding Principal & Related acute angle by using points II Trigonometry
Video · by O/A-Level Mathematics
Finding Quadratic Equations from Graph
Video · by O/A-Level Mathematics
Finding Sinusoidal Equation from given Graph II Sinusoidal function
Video · by O/A-Level Mathematics
Finding Zeros / Roots of Quadratic Equation by Discriminant — Maths Times
Video · by O/A-Level Mathematics
Formulas of Trigonometric ratios & Pythagorean Theorem
Video · by O/A-Level Mathematics
Functions (overview)
Video · by O/A-Level Mathematics
General Growth & Decay II Exponential Function
Video · by O/A-Level Mathematics
Geometric Sequence
Video · by O/A-Level Mathematics
Geometric Sequence Examples, Definitions, and Formula - O/A Level Math
Video · by O/A-Level Mathematics
Graph of Cosine Function by using Properties II Sinusoidal Function
Video · by O/A-Level Mathematics
Graph of cosine Function by using Transformations II Sinusoidal function
Video · by O/A-Level Mathematics
Graph of Exponential function by Transformations
Video · by O/A-Level Mathematics
Graph of Radical function by Transformation
Video · by O/A-Level Mathematics
Graph of Rational Function by using Transformation
Video · by O/A-Level Mathematics
Graph of Sine Function by using Properties II Sinusoidal Function
Video · by O/A-Level Mathematics
Graph of Sine function by using Transformations II Sinusoidal Function
Video · by O/A-Level Mathematics
Graphing Factored form of Quadratic Equation by using properties
Video · by O/A-Level Mathematics
Graphing Linear Equation by Table of Values
Video · by O/A-Level Mathematics
Graphing Linear Equations by slope & y-intercept Method
Video · by O/A-Level Mathematics
Graphing Linear equations by x & y Intercepts
Video · by O/A-Level Mathematics
Graphing Standard form of Quadratic Equation by using properties
Video · by O/A-Level Mathematics
Graphing Standard form of Quadratic Equation by using Table of Values
Video · by O/A-Level Mathematics
Graphing Striaght Line on xy-Plane
Video · by O/A-Level Mathematics
Graphing Vertex form of Quadratic Equation by Step Method
Video · by O/A-Level Mathematics
Graphing Vertex form of Quadratic Equation by Transformations
Video · by O/A-Level Mathematics
Graphs of Inequalities
Video · by O/A-Level Mathematics
Half Life II Applications of Exponential function
Video · by O/A-Level Mathematics
Halfway Fractions
Video · by O/A-Level Mathematics
How to Read Graph of a Function
Video · by O/A-Level Mathematics
IGCSE Mathematics Paper 3 (Core) 0580/03 From 2025
Video · by O/A-Level Mathematics
IGCSE Mathematics Specimen Paper 1 (Core) 0580/01 From 2025
Video · by O/A-Level Mathematics
IGCSE Mathematics Specimen Paper 3B (Core) 0580/03 From 2025
Video · by O/A-Level Mathematics
IGCSE Mathematics Specimen Paper B1 (Core) 0580/01 from 2025
Video · by O/A-Level Mathematics
IGCSE Mathematics Specimen Paper B2 (Extended) 0580/02 From 2025
Video · by O/A-Level Mathematics
IGCSE Mathematics Specimen Paper B4 (Extended) 0580/04 From 2025
Video · by O/A-Level Mathematics
Increase / Decrease a Number by a certain Percentage
Video · by O/A-Level Mathematics
Increase 20 in ratio 3:2 & Decrease 32 in ratio 3:4 II O level Math D 4024 Question
Video · by O/A-Level Mathematics
Index , Laws of Indices
Video · by O/A-Level Mathematics
Inequality
Video · by O/A-Level Mathematics
Installments
Video · by O/A-Level Mathematics
Introduction to Cambridge O Level Math by Jean Matthew
Video · by O/A-Level Mathematics
Introduction To Numbers / Types of Numbers
Video · by O/A-Level Mathematics
Inverse of a Function
Video · by O/A-Level Mathematics
Inverse of Quadratic Function
Video · by O/A-Level Mathematics
Law of Cosine
Video · by O/A-Level Mathematics
Law of Cosine II Trigonometry
Video · by O/A-Level Mathematics
Law Of Sine
Video · by O/A-Level Mathematics
Law of Sine — Trigonometry
Video · by O/A-Level Mathematics
LCM / HCF
Video · by O/A-Level Mathematics
LCM & HCF
Video · by O/A-Level Mathematics
Least Common Multiple / Highest Common Factor II O level Math D 4024 Question
Video · by O/A-Level Mathematics
Length of a Line segment OR Distance between two points
Video · by O/A-Level Mathematics
Linear - Quadratic System
Video · by O/A-Level Mathematics
Linear Quadratic System
Video · by O/A-Level Mathematics
Map Related Problems
Video · by O/A-Level Mathematics
Maximize Profit — Quadratic Equation
Video · by O/A-Level Mathematics
Maximize Revenue
Video · by O/A-Level Mathematics
Mensuration 2D
Video · by O/A-Level Mathematics
Mensuration 2D Exam-style Questions
Video · by O/A-Level Mathematics
Method of Elimination
Video · by O/A-Level Mathematics
Method of Elimination
Video · by O/A-Level Mathematics
Method of Substitution
Video · by O/A-Level Mathematics
Method of Substitution
Video · by O/A-Level Mathematics
Midpoint
Video · by O/A-Level Mathematics
Midpoint of a Line segment
Video · by O/A-Level Mathematics
Multiplication & Division in Standard Form
Video · by O/A-Level Mathematics
Multiplication of Surds
Video · by O/A-Level Mathematics
Multiply & Divide Rational Expressions
Video · by O/A-Level Mathematics
Multiply Polynomials II Polynomial functions
Video · by O/A-Level Mathematics
O Level Math - D Paper 1 (Specimen Paper B) 4024/01 from 2025
Video · by O/A-Level Mathematics
O Level Math - D Paper 2 (Specimen Paper B) 4024/02 from 2025
Video · by O/A-Level Mathematics
O Level Math - D Specimen Paper 2 4024/02 from 2025
Video · by O/A-Level Mathematics
O Level Math D Paper 1 4024/12 May/June2021
Video · by O/A-Level Mathematics
O Level Math-D Specimen Paper 1 4024/01 from 2025
Video · by O/A-Level Mathematics
Operations on Radicals
Video · by O/A-Level Mathematics
Parallel & Perpendicular Lines
Video · by O/A-Level Mathematics
Pascal's Triangle & Binomial expansion
Video · by O/A-Level Mathematics
Percent of a Number
Video · by O/A-Level Mathematics
Percentage Profit Percentage Loss
Video · by O/A-Level Mathematics
Perfect Cubes
Video · by O/A-Level Mathematics
Perfect Squares
Video · by O/A-Level Mathematics
Polygons : Regular & Irregular with Formulas
Video · by O/A-Level Mathematics
Primary Trigonometric ratios for 90 degree II Trigonometry
Video · by O/A-Level Mathematics
Prime Factorization
Video · by O/A-Level Mathematics
Prime Factorization by Factor tree method & Division method
Video · by O/A-Level Mathematics
Principal angle & Related acute angle II Trigonometry
Video · by O/A-Level Mathematics
Proof of Pythagorean Identities II Trigonometry
Video · by O/A-Level Mathematics
Proof of Quotient identities II Trigonometry
Video · by O/A-Level Mathematics
Proper /Improper Fractions & Mixed Numbers
Video · by O/A-Level Mathematics
Properties of Addition
Video · by O/A-Level Mathematics
Properties of Multiplication
Video · by O/A-Level Mathematics
Pythagoras theorem
Video · by O/A-Level Mathematics
Quadratic Equations by Completing Square Method
Video · by O/A-Level Mathematics
Quadratic Equations by Factorization
Video · by O/A-Level Mathematics
Quadratic Equations by Quadratic Formula
Video · by O/A-Level Mathematics
Quadratic Equations overview ( Forms and Methods)
Video · by O/A-Level Mathematics
Quadratic Equations Word Problems
Video · by O/A-Level Mathematics
Quadratic Formula
Video · by O/A-Level Mathematics
Quadratic Sequence
Video · by O/A-Level Mathematics
Quadrilateral is a Rhombus
Video · by O/A-Level Mathematics
Quadrilateral is Parallelogram
Video · by O/A-Level Mathematics
Ratio
Video · by O/A-Level Mathematics
Ratio of three Variables
Video · by O/A-Level Mathematics
Rational / Irrational Numbers
Video · by O/A-Level Mathematics
Rationalization of Surds
Video · by O/A-Level Mathematics
Representing Quadratic Relations by 3-ways
Video · by O/A-Level Mathematics
Reverse Percentages
Video · by O/A-Level Mathematics
Rules Of Upper & Lower Bounds
Video · by O/A-Level Mathematics
Significant Figures
Video · by O/A-Level Mathematics
Similar & Congruent Triangle Example
Video · by O/A-Level Mathematics
Similar & Congruent Triangles
Video · by O/A-Level Mathematics
Simple & Compound Interest
Video · by O/A-Level Mathematics
Simple Interest (Definition, Explanation, Examples)
Video · by O/A-Level Mathematics
Simplify Rational Expressions II Rational Function
Video · by O/A-Level Mathematics
Simultaneous Equations
Video · by O/A-Level Mathematics
Solve polynomials by Cubic formulas
Video · by O/A-Level Mathematics
Solve Polynomials by Square Formulas
Video · by O/A-Level Mathematics
Solve Right angle triangle — Trigonometry
Video · by O/A-Level Mathematics
Solving Linear Systems Graphically
Video · by O/A-Level Mathematics
Solving Quadratic Equation by Completing Square Method
Video · by O/A-Level Mathematics
Solving Quadratic Equation by Factorization
Video · by O/A-Level Mathematics
Solving Quadratic Equation by Quadratic Formula
Video · by O/A-Level Mathematics
Solving trigonometric equations II Trigonometry
Video · by O/A-Level Mathematics
Square root Of Prime Number II O level Math D 4024 Question
Video · by O/A-Level Mathematics
Square roots of decimal numbers (non calculator paper)
Video · by O/A-Level Mathematics
Standard Form vs Ordinary Form & Conversions
Video · by O/A-Level Mathematics
Subset
Video · by O/A-Level Mathematics
Subset
Video · by O/A-Level Mathematics
Subtraction Of Time (non-calculator)
Video · by O/A-Level Mathematics
Successive Percentages
Video · by O/A-Level Mathematics
Surds
Video · by O/A-Level Mathematics
Thank you for watching and appreciating my content
Video · by O/A-Level Mathematics
The Complement of a Set
Video · by O/A-Level Mathematics
Three ways to check given relation is function or not — Function
Video · by O/A-Level Mathematics
Time World-Problems
Video · by O/A-Level Mathematics
Transformation of Sinusoidal function
Video · by O/A-Level Mathematics
Transformation of Sinusoidal function II Sinusoidal Function
Video · by O/A-Level Mathematics
Transformations ( Reflection, Rotation, Translation, Enlargement) II O level Math D 4024 Question
Video · by O/A-Level Mathematics
Transformations in Quadratic Equations
Video · by O/A-Level Mathematics
Transformations of Function
Video · by O/A-Level Mathematics
Trigonometric Ratios
Video · by O/A-Level Mathematics
Trigonometric ratios for special angles 30, 45, 60 degree
Video · by O/A-Level Mathematics
Types of Numbers ( Natural, Integers Rational, Irrational, Reciprocal)
Video · by O/A-Level Mathematics
Union and Intersection of sets , Empty/Null set
Video · by O/A-Level Mathematics
Unit Conversions
Video · by O/A-Level Mathematics
Upper & Lower Bounds
Video · by O/A-Level Mathematics
Using Algebraic Expressions in Functions
Video · by O/A-Level Mathematics
Using Similar triangle to determine the side lengths — Trigonometry
Video · by O/A-Level Mathematics
Variations (Directly / Inversely Proportional)
Video · by O/A-Level Mathematics
Venn Diagram
Video · by O/A-Level Mathematics