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    • Number >
      • Arithmetic >
        • The Four Operations >
          • The Four Operations (QQI)
          • The Four Operations (10QQI)
          • The Four Operations (QQI Count Down)
          • The Four Operations (QQI Relay)
          • The Four Operations (QQI BINGO)
          • The Four Operations (QQI Worksheets)
          • The Four Operations (Video)
          • Timestables Square (QQI)
          • Grid Multiplication (QQI)
        • Missing Numbers >
          • Missing Numbers (QQI)
          • Missing Numbers (10QQI)
          • Missing Numbers (QQI Count Down)
          • Missing Numbers (QQI Relay)
          • Missing Numbers (QQI BINGO)
          • Missing Numbers (QQI Worksheets)
        • Order of Operations >
          • Order of Operations (QQI)
          • Order of Operations (10QQI)
          • Order of Operations (QQI Count Down)
          • Order of Operations (QQI Relay)
          • Order of Operations (QQI BINGO)
          • Order of Operations (QQI Worksheets)
        • Powers of Ten >
          • Powers of Ten (QQI)
          • Powers of Ten (10QQI)
          • Powers of Ten (QQI Count Down)
          • Powers of Ten (QQI Relay)
          • Powers of Ten (QQI BINGO)
          • Powers of Ten (QQI Worksheets)
        • Decimal Operations >
          • Decimal Operations (QQI)
          • Decimal Operations (10QQI)
          • Decimal Operations (QQI Count Down)
          • Decimal Operations (QQI Relay)
          • Decimal Operations (QQI BINGO)
          • Decimal Operations (QQI Worksheets)
        • Rounding >
          • Rounding (QQI)
          • Rounding (10QQI)
          • Rounding (QQI Count Down)
          • Rounding (QQI Relay)
          • Rounding (QQI BINGO)
          • Rounding (QQI Worksheets)
        • Products and Sums (QQI)
        • Products and Sums (10QQI)
      • Fractions >
        • Cancelling Fractions >
          • Cancelling Fractions (QQI)
          • Cancelling Fractions (10QQI)
          • Cancelling Fractions (QQI Count Down)
          • Cancelling Fractions (QQI Relay)
          • Cancelling Fractions (QQI BINGO)
          • Cancelling Fractions (QQI Worksheets)
        • Mixed Numbers and Improper Fractions >
          • Mixed Numbers and Improper Fractions (QQI)
          • Mixed Numbers and Improper Fractions (10QQI)
          • Mixed Numbers and Improper Fractions (QQI Count Down)
          • Mixed Numbers and Improper Fractions (QQI Relay)
          • Mixed Numbers and Improper Fractions (QQI BINGO)
          • Mixed Numbers and Improper Fractions (QQI Worksheets)
        • Fractions of Amounts >
          • Fractions of Amounts (QQI)
          • Fractions of Amounts (10QQI)
          • Fractions of Amounts (QQI Count Down)
          • Fractions of Amounts (QQI Relay)
          • Fractions of Amounts (QQI BINGO)
          • Fractions of Amounts (QQI Worksheets)
        • Fraction Arithmetic >
          • Fraction Arithmetic (QQI)
          • Fraction Arithmetic (10QQI)
          • Fraction Arithmetic (QQI Count Down)
          • Fraction Arithmetic (QQI Relay)
          • Fraction Arithmetic (QQI BINGO)
          • Fraction Arithmetic (QQI Worksheets)
      • FDP >
        • Fraction Decimal Conversions Drill
      • Percentages >
        • Percentages of Amounts >
          • Percentages of Amounts (QQI)
          • Percentages of Amounts (10QQI)
          • Percentages of Amounts (QQI Count Down)
          • Percentages of Amounts (QQI Relay)
          • Percentages of Amounts (QQI BINGO)
          • Percentages of Amounts (QQI Worksheets)
          • Percentage of Amounts (Video)
        • Writing Numbers as a Percentage >
          • Writing Numbers as a Percentage (QQI)
          • Writing Numbers as a Percentage (10QQI)
          • Writing Numbers as a Percentage (QQI Count Down)
          • Writing Numbers as a Percentage (QQI Relay)
          • Writing Numbers as a Percentage (QQI BINGO)
          • Writing Numbers as a Percentage (QQI Worksheets)
          • Writing Numbers as a Percentage (Video)
        • Percentage Change >
          • Percentage Change (QQI)
          • Percentage Change (10QQI)
          • Percentage Change (QQI Count Down)
          • Percentage Change (QQI Relay)
          • Percentage Change (QQI Worksheets)
          • Percentage Change (Video)
        • Increase and Decrease by a Percentage >
          • Increase and Decrease by a Percentage (QQI)
          • Increase and Decrease by a Percentage (10QQI)
          • Increase and Decrease by a Percentage (QQI Count Down)
          • Increase and Decrease by a Percentage (QQI Relay)
          • Increase and Decrease by a Percentage (QQI BINGO)
          • Increase and Decrease by a Percentage (QQI Worksheets)
          • Increase and Decrease by a Percentage (Video)
        • Compound Interest and Simple Interest >
          • Compound Interest and Simple Interest (QQI)
          • Compound Interest and Simple Interest (10QQI)
          • Compound Interest and Simple Interest (QQI Count Down)
          • Compound Interest and Simple Interest (QQI Relay)
          • Compound Interest and Simple Interest (QQI BINGO)
          • Compound Interest and Simple Interest (QQI Worksheets)
          • Compound Interest and Simple Interest (Video)
        • Overall Percentage Change >
          • Overall Percentage Change (QQI)
          • Overall Percentage Change (10QQI)
          • Overall Percentage Change (QQI Count Down)
          • Overall Percentage Change (QQI Relay)
          • Overall Percentage Change (QQI BINGO)
          • Overall Percentage Change (QQI Worksheets)
        • Reverse Percentages >
          • Reverse Percentages (QQI)
          • Reverse Percentages (10QQI)
          • Reverse Percentages (QQI Count Down)
          • Reverse Percentages (QQI Relay)
          • Reverse Percentages (QQI BINGO)
          • Reverse Percentages (QQI Worksheets)
          • Reverse Percentages (Video)
        • Mixed Percentages >
          • Mixed Percentages (QQI)
          • Mixed Percentages (10QQI)
          • Mixed Percentages (QQI Count Down)
          • Mixed Percentages (QQI Relay)
          • Mixed Percentages (QQI BINGO)
          • Mixed Percentages (QQI Worksheets)
      • Factors and Multiples >
        • Number Properties (QQI)
        • Product of Primes >
          • Product of Primes (QQI)
          • Product of Primes (10QQI)
          • Product of Primes (QQI Count Down)
          • Product of Primes (QQI Relay)
          • Product of Primes (QQI BINGO)
          • Product of Primes (QQI Worksheets)
        • HCF and LCM >
          • HCF and LCM (QQI)
          • HCF and LCM (10QQI)
          • HCF and LCM (QQI Count Down)
          • HCF and LCM (QQI Relay)
          • HCF and LCM (QQI BINGO)
          • HCF and LCM (QQI Worksheets)
          • HCF and LCM (Video)
        • 100 Square Multiples (QQI)
        • 100 Square Types of Numbers (QQI)
      • Standard Form >
        • Standard Form Conversions >
          • Standard Form Conversions (QQI)
          • Standard Form Conversions (10QQI)
          • Standard Form Conversions (QQI Count Down)
          • Standard Form Conversions (QQI Relay)
          • Standard Form Conversions (QQI BINGO)
          • Standard Form Conversions 2 (QQI BINGO)
          • Standard Form Conversions (QQI Worksheets)
        • Standard Form Arithmetic >
          • Standard Form Arithmetic (QQI)
          • Standard Form Arithmetic (10QQI)
          • Standard Form Arithmetic (QQI Count Down)
          • Standard Form Arithmetic (QQI Relay)
          • Standard Form Arithmetic (QQI BINGO)
          • Standard Form Arithmetic (QQI Worksheets)
      • Ratio and Proportion >
        • Ratio (Video)
      • Surds >
        • Surds Activities >
          • Surds (QQI)
          • Surds (10QQI)
          • Surds (QQI Count Down)
          • Surds (QQI Relay)
          • Surds (QQI BINGO)
          • Surds (QQI Worksheets)
    • Algebra >
      • Algebraic Manipulation >
        • Collecting Like Terms >
          • Collecting Like Terms (QQI)
          • Collecting Like Terms (10QQI)
          • Collecting Like Terms (QQI Count Down)
          • Collecting Like Terms (QQI Relay)
          • Collecting Like Terms (QQI BINGO)
          • Collecting Like Terms (QQI Worksheets)
        • Expanding Single Brackets >
          • Expanding Single Brackets (QQI)
          • Expanding Single Brackets (10QQI)
          • Expanding Single Brackets (QQI Count Down)
          • Expanding Single Brackets (QQI Relay)
          • Expanding Single Brackets (QQI BINGO)
          • Expanding Single Brackets (QQI Worksheets)
        • Factorising >
          • Factorising (QQI)
          • Factorising (10QQI)
          • Factorising (QQI Count Down)
          • Factorising (QQI Relay)
          • Factorising (QQI BINGO)
          • Factorising (QQI Worksheets)
        • Expanding Quadratic Brackets >
          • Expanding Quadratic Brackets (QQI)
          • Expanding Quadratic Brackets (10QQI)
          • Expanding Quadratic Brackets (QQI Count Down)
          • Expanding Quadratic Brackets (QQI Relay)
          • Expanding Quadratic Brackets (QQI BINGO)
          • Expanding Quadratic Brackets (QQI Worksheets)
        • Factorising Quadratics >
          • Factorising Quadratics (QQI)
          • Factorising Quadratics (10QQI)
          • Factorising Quadratics (QQI Count Down)
          • Factorising Quadratics (QQI Relay)
          • Factorising Quadratics (QQI BINGO)
          • Factorising Quadratics (QQI Worksheets)
          • Factorising Quadratic Expressions (Video)
          • Factorising Four Term Expressions (Video)
        • Indices >
          • Indices (QQI)
          • Indices (10QQI)
          • Indices (QQI Count Down)
          • Indices (QQI Relay)
          • Indices (QQI BINGO)
          • Indices (QQI Worksheets)
        • Completing the Square >
          • Completing the Square (QQI)
          • Completing the Square (10QQI)
          • Completing the Square (QQI Count Down)
          • Completing the Square (QQI Relay)
          • Completing the Square (QQI BINGO)
          • Completing the Square 2 (QQI BINGO)
          • Completing the Square (QQI Worksheets)
        • Algebraic Fractions >
          • Simplifying Algebraic Fractions (Video)
          • Adding and Subtracting Algebraic Fractions (Video)
          • Multiplying and Dividing Algebraic Fractions (Video)
      • Coordinates >
        • Coordinates (GGB)
        • Coordinate Battleship First Quadrant (GGB)
        • Coordinate Battleship All Four Quadrants (GGB)
        • 3D Coordinates (AGG)
      • Equations >
        • Linear Equations >
          • Solving Linear Equations >
            • Solving Linear Equations (QQI)
            • Solving Linear Equations (10QQI)
            • Solving Linear Equations (QQI Count Down)
            • Solving Linear Equations (QQI Relay)
            • Solving Linear Equations (QQI BINGO)
            • Solving Linear Equations (QQI Worksheets)
          • Solving Equations with Algebraic Fractions (Video)
        • Quadratic Equations >
          • Solving Quadratic Equations >
            • Solving Quadratics Factorising Tool
            • Solving Quadratic Equations (QQI)
            • Solving Quadratic Equations (10QQI)
            • Solving Quadratic Equations (QQI Count Down)
            • Solving Quadratic Equations (QQI Relay)
            • Solving Quadratic Equations (QQI BINGO)
            • Solving Quadratic Equations (QQI Worksheets)
          • Solving Quadratic Equations by Factorising (Video)
          • The Quadratic Formula (Video)
          • Problems Involving Quadratic Equations (Video)
        • Simultaneous Equations >
          • Solving Simultaneous Equations >
            • Solving Simultaneous Equations (QQI)
            • Solving Simultaneous Equations (10QQI)
            • Solving Simultaneous Equations (QQI Count Down)
            • Solving Simultaneous Equations (QQI Relay)
            • Solving Simultaneous Equations (QQI Relay Fixed)
            • Solving Simultaneous Equations (QQI BINGO)
            • Solving Simultaneous Equations (QQI Worksheets)
          • Solving Simultaneous Equations Graphically (Video)
          • Simultaneous Equations by Substitution (Video)
          • Simultaneous Equations by Elimination (Video)
          • Simultaneous Equations - One Non-Linear (Video)
      • Sequences >
        • Sequences Activity (QQI)
        • Sequences Activities >
          • Sequences (QQI)
          • Sequences (10QQI)
          • Sequences (QQI Count Down)
          • Sequences (QQI Relay)
          • Sequences (QQI BINGO)
          • Sequences (QQI Worksheets)
        • Generating Sequences (Video)
        • General Term for Linear Sequences (Video)
        • Simple Quadratic Sequences (Video)
        • General Term for Quadratic Sequences (Video)
        • General Term for Cubic Sequences (Video)
        • Geometric Sequences (Video)
        • Common Differences (QQI)
      • Graphs >
        • Straight Line Graphs >
          • Drawing Straight Line Graphs (GGB)
          • Gradient of a Line (GGB)
          • Gradient of a Line 2 (GGB)
          • Parallel Lines (GGB)
          • Perpendicular Lines (GGB)
          • y = mx + c Activity (GGB)
          • Battleships 1 (AGG)
          • Battleships 2 (AGG)
          • Battleships 3 (AGG)
          • Find the Lines 1 (AGG)
          • Regions in Graphs (Video)
        • Non-Linear Graphs >
          • Drawing Curves (GGB)
          • Quadratic Graphs Activity (GGB)
          • Finding Quadratic Functions (Video)
        • Graphs with a Casio GDC (Video)
      • Graph Transformations >
        • Graph Transformations 1 (GGB)
        • Graph Transformations 2 (GGB)
        • Graph Transformations 3 (GGB)
        • Graph Transformations 4 (GGB)
        • Graph Transformations 5 (GGB)
        • Graph Transformations 6 (GGB)
      • Functions >
        • Functions Introductions (Video)
        • Function Graphs and Important Points (Video)
        • Solving Unfamiliar Equations Using Functions (Video)
        • Function Notation Revision (Video)
        • Composite Functions (Video)
        • Inverse Functions (Video)
    • Shape >
      • Symmetry >
        • Reflection Symmetry >
          • Reflection Symmetry in Quadrilaterals (GGB)
          • Reflection Symmetry in Triangles (GGB)
          • Reflection Symmetry in Other Shapes (GGB)
        • Rotational Symmetry >
          • Rotational Symmetry in Quadrilaterals (GGB)
          • Rotational Symmetry in Triangles (GGB)
          • Rotational Symmetry in Other Shapes (GGB)
      • Area and Perimeter >
        • Polygons >
          • Perimeters (GGB)
          • Area of a Triangle (GGB)
          • Area of a Parallelogram (GGB)
          • Area of a Trapezium (GGB)
          • Area of Compound Shapes (GGB)
          • Perimeter and Area (GGB)
        • Circles >
          • Discovering Pi (GGB)
          • Circumference of a Circle (GGB)
          • Area of a Circle (GGB)
          • Running Tracks (GGB)
          • Circle Area Problem (GGB)
          • Circles and Squares (GGB)
        • Area (QQI)
        • Area (10QQI)
        • Tilted Squares (GGB)
        • Difference Between Two Squares (GGB)
      • Volume and Surface Area >
        • Volumes and Surface Areas (QQI)
        • Volumes and Surface Areas (10QQI)
      • Angles >
        • Guess the Angle (GGB)
        • Angles on a Straight Line (GGB)
        • Angles around a Point (GGB)
        • Angles in a Triangle (GGB)
        • Angles in a Quadrilateral (GGB)
        • Angles in a Regular Polygon (GGB)
        • Angles on Parallel Lines (GGB)
        • Striping Angles (GGB)
      • Transformations >
        • Reflection >
          • Reflections (GGB)
          • Reflection Challenge (GGB)
        • Rotation >
          • Rotations (GGB)
          • Rotation Challenge (GGB)
        • Translation >
          • Translations (GGB)
          • Translation Challenge (GGB)
        • Enlargement >
          • Enlargements (GGB)
          • Enlargement Challenge (GGB)
          • Other Scale Factors (GGB)
        • Challenges >
          • Which Transformation (GGB)
          • How Many Transformations (GGB)
          • Find Them All (AGG)
          • Ultimate Challenge (GGB)
        • Matrix Transformations (AGG)
      • Pythagoras Theorem >
        • Pythagoras Theorem Activities >
          • Pythagoras Theorem (QQI)
          • Pythagoras Theorem (10QQI)
          • Pythagoras Theorem (QQI Count Down)
          • Pythagoras Theorem (QQI Relay)
          • Pythagoras Theorem (QQI BINGO)
          • Pythagoras Theorem (QQI Worksheets)
        • Pythagoras Theorem (GGB)
        • Pythagorean Triples (GGB)
        • Pythagoras Proof (GGB)
        • Ladders up Walls (GGB)
        • Pythagoras in 3D (GGB)
        • Finding the Hypotenuse Example (Video)
        • Finding a Shorter Side Example (Video)
      • Trigonometry >
        • Right Angled Trigonometry >
          • Right Angled Trigonometry (QQI)
          • Right Angled Trigonometry (10QQI)
          • Right Angled Trigonometry (QQI Count Down)
          • Right Angled Trigonometry (QQI Relay)
          • Right Angled Trigonometry (QQI BINGO)
          • Right Angled Trigonometry (QQI Worksheets)
          • Discovering Trig Ratios (GGB)
          • Finding Lengths (GGB)
          • Finding Missing Lengths (Video)
          • Finding Missing Angles (Video)
        • Sine Rule (Video)
        • Cosine Rule (Video)
        • Sine and Cosine Rules (Video)
      • Circle Theorems >
        • Angle in the Centre vs Angle at the Circumference (GGB)
        • Angle at the Centre vs Angle at the Circumference (Video)
        • Angles in a Semicircle (GGB)
        • Angle in a Semicircle (Video)
        • Angles in Cyclic Quadrilaterals (GGB)
        • Angles in a Cyclic Quadrilateral (Video)
        • Angles in the Same Segment (GGB)
        • Angles in the Same Segment (Video)
        • Tangents (GGB)
        • Tangents (Video)
        • Alternate Segment Theorem (GGB)
        • Intersecting Tangents (GGB)
        • Intersecting Tangents (Video)
        • Intersecting Chords (GGB)
      • Vectors >
        • Vectors and Scalars (Video)
        • Vector Notation (Video)
        • Resultant Vectors (Video)
        • Resultants of Column Vectors (Video)
        • Scalar Multiplication (Video)
        • Magnitude of a Vector (Video)
      • Miscellaneous >
        • Squares (GGB)
        • Tangrams (GGB)
        • Euler Line (GGB)
        • Geoboards
    • Statistics >
      • Probability >
        • Probability (QQI)
        • Probability (10QQI)
        • Probability Tools (Flash)
      • Averages >
        • Averages Activity (QQI)
        • Listed Averages >
          • Listed Averages (QQI)
          • Listed Averages (10QQI)
          • Listed Averages (QQI Count Down)
          • Listed Averages (QQI Relay)
          • Listed Averages (QQI BINGO)
          • Listed Averages (QQI Worksheets)
          • Averages From Lists of Data (Video)
          • Quartiles and Interquartile Range (Video)
        • Averages from Frequency Tables >
          • Averages from Frequency Tables (QQI)
          • Averages from Frequency Tables (10QQI)
          • Averages from Frequency Tables (QQI Count Down)
          • Averages from Frequency Tables (QQI Relay)
          • Averages from Frequency Tables (QQI BINGO)
          • Averages from Frequency Tables (QQI Worksheets)
          • Averages From Frequency Tables (Video)
          • Averages From Grouped Frequency Tables (Video)
        • Averages With A GDC (Video)
      • Statistical Diagrams >
        • Cumulative Frequency (Video)
        • Scatter Graphs and the Mean Point (Video)
        • Scatter Graphs and Linear Regression on a GDC (Video)
        • Correlation and the Correlation Coefficient on a GDC (Video)
    • Post 16 Topics >
      • Binomial Expansion >
        • Binomial Expansion (Video)
        • Binomial Theorem (Video)
        • Binomial Coefficients (Video)
        • Binomial Applications (Video)
      • Coordinate Geometry >
        • Coordinate Geometry (QQI)
        • Coordinate Geometry (10QQI)
        • Equation of a Circle (AGG)
      • Differentiation >
        • Differentiating Polynomials >
          • Differentiating Polynomials (QQI)
          • Differentiating Polynomials (10QQI)
          • Differentiating Polynomials (QQI Count Down)
          • Differentiating Polynomials (QQI Relay)
          • Differentiating Polynomials (QQI BINGO)
          • Differentiating Polynomials (QQI Worksheets)
        • Finding Gradients of Curves (QQI)
        • Finding Gradients of Curves (10QQI)
        • Finding Turning Points of Curves (QQI)
        • Finding Turning Points of Curves (10QQI)
      • Trigonometry >
        • Radian and Degree Conversions >
          • Radian and Degree Conversions (QQI)
          • Radian and Degree Conversions (10QQI)
          • Radian and Degree Conversions (QQI Count Down)
          • Radian and Degree Conversions (QQI Relay)
          • Radian and Degree Conversions (QQI BINGO)
          • Radian and Degree Conversions (QQI Worksheets)
        • Trigonometric Exact Values >
          • Trigonometric Exact Values (QQI)
          • Trigonometric Exact Values (10QQI)
          • Trigonometric Exact Values (QQI Count Down)
          • Trigonometric Exact Values (QQI Relay)
          • Trigonometric Exact Values (QQI BINGO)
          • Trigonometric Exact Values (QQI Worksheets)
        • Graphs of Trig Functions (GGB)
      • Normal Distribution Symmetry
  • Starters, Puzzles and Enrichment
    • UKMT Random Question Generator
    • @mathschallenge Random Questions
    • School of Hard Sums Random Questions
    • Random Starter of the Day
    • Mathematically Possible (QQI Starter)
    • Adding Challenge (QQI Starter)
    • Date Starter (QQI Starter)
    • Name That Number (QQI Starter)
    • Matchstick Random Questions
    • Choose 3 Numbers (QQI Starter)
    • What's The Question (QQI Starter)
    • Mathematical Words (QQI Starter)
    • Number of the Day (QQI Starter)
    • Anagrams and Missing Vowels (QQI Starter)
    • Missing Vowels and Word Jumbles (QQI) >
      • Missing Vowels and Word Jumbles Simple Numbers (QQI)
    • Tables (QQI)
    • Target Boards (QQI)
    • Missing Signs (QQI)
    • Random Activities >
      • Exploding Dots
      • Easter Date
      • Easter Tangrams (GGB)
      • Zeller's Algorithm
      • Batman Equation (AGG)
      • Templates
    • Mathematical Videos >
      • Fermat's Last Theorem (Video)
      • Pi Song (Video)
      • Monty Hall Problem (Video)
      • Symmetry, Reality's Riddle (Video)
      • Music of the Primes (Video)
      • Folding Paper (Video)
      • Nature by Numbers (Video)
      • Inspirations (Video)
  • Tools for Teachers
    • IB DP AAHL Online Course
    • Maths Question Generator
    • Topic Question Generator
    • MYP eAssessment Investigation Generator
    • IB AI SL Exam Question Generator
    • IB AA HL Key Skills Generator
    • IB DP Exam Grade Boundaries
    • IB MYP Grade Boundaries
    • Exam Timings Tool

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