Go Maths is a collection of online activities for upper Secondary/High school pupils/students to support their learning.
This list is by topic but you can also List activities in alphabetical order.

Algebra

Algebra In Action
Algebra Pairs
Algebraic Fractions
Algebraic Notation
Algebraic Perimeters
BIDMAS
BIDMAS Game
Brackets
Changing The Subject
Clouds
Collecting Like Terms
Completing the Square
Connecting Rules
Equations
Factorising
Formulae to Remember
Function Builder
Functions
Graph Equation Pairs
Identity, Equation or Formula?
Inequalities
Iteration
Lemon Law
Linear Programming
Matchstick Patterns
Missing Lengths
Nevertheless
Old Equations
Online Psychic
Pascal's Triangle
Quadratic Equations
Quadratic Sequences
Recurring Decimals
Simultaneous Solutions
Stable Scales
Substitution
Think of a Number
Words and Concepts
Writing Expressions

Angles

Angle Chase
Angle Parallels
Angle Points
Angles in a Triangle
Circle Theorem Pairs
Circle Theorems Exercise
Estimating Angles
Measuring Angles
Online Logo
Pie Charts
Polygon Angles
Proof of Circle Theorems
Scale Drawings
Snooker Angles

Approximation

Rough Answers
Rounding DP
Rounding SF
Rounding Snap
Rounding Ten
Upper and Lower Bounds

Area

Area and Perimeter
Area and Perimeter of a Rectangle
Area Builder
Area Maze
Area of a Trapezium
Area of a Triangle
Area Two
Area Wall Puzzles
Areas of Composite Shapes
Circles
Formulae Pairs
Quad Areas
Similar Shapes
Surface Area

Arithmetic

23 or Bust
Addle
Arithmagons
Basic Addition
Basic Division
Basic Multiplication
Basic Subtraction
Beat The Clock
BIDMAS
BIDMAS Game
Bidmaze
Brainbox
Broken Calculator
Centexpression
Chain Challenge
Clouds
Decimal Plus
Decimal Times
Digital Darts
Digivide
Discombobulated
Doubling Quiz
Fast Factors
Fifteen
Furthermore
Heptaphobia Research
How Many of Each?
Know Your Place
Largest Product
Letter Sums
Ludicross
Magic Square
Magic Square Puzzle
Make 1000
Make an expression
Masad
Mixpressions
Multi-step Problems
Multitude
Nine Digits
Nine Nine Nine
No Partner
Number Crunch Saga
Number Skills Inventory
Numerate
Numskull
One Digit Only
Pentadd Quiz
Pentransum
Pick Up Sticks
Plane Numbers
Plus
Powten
Pyramid Puzzle
Quick
Remainder Race
Roman Numerals Quiz
Six Discrimination
Six Keys
Spinsum
Stamp Sticking
Standard Form
Suko Sujiko
Sum Game
TablesMaster
The Miller's Puzzle
Think of a Number
Times Tables
Tools
Triplets
Tug of War
Unmagic Square
Zygo

Averages

Averages
Box Plots
Choose Your Average
Cumulative Frequency

Bearings

Bearings
Navigation NEWS
Snooker Angles

Calculator

BIDMAS
Broken Calculator
Calculator Words
Calculator Workout
Consecutive Numbers
Make 1000
Make an expression
Six Discrimination
Six Keys
Using A Calculator

Circles

Circle Equations
Circle Pairs
Circle Theorem Pairs
Circle Theorems Exercise
Circles
In Terms of Pi
Proof of Circle Theorems

Combinations

How Many Triangles?
Ice-cream Combinations
Misfits
Six Keys
Snake Sort
Striped Sweets
Systematic Listing
Take Baht
Triplets
Xmas Tree Trim

Construction

Constructions
Loci Construction Pairs
Loci Land
Measuring Angles
Scale Drawings

Coordinates

Coordinate Plotter
Coordinates
Plotting Graphs
Transformations
Where's Wallaby?

Creativity

Green Fingers
Online Logo

Data Handling

Pie Charts
Pin Drop

Decimals

Decimal Plus
Decimal Times
Fraction Decimal Pairs
Fraction Line
Fraction Order
Fractions, Decimals, Percentages
Inequalities
Reading Scales
Recurring Decimals
Rounding SF
Think of a Number

Enlargements

Map Scales
Similar Shapes
Transformations

Estimating

Estimating
Estimating Angles
Estimating Percentages
Estimation Golf
Rough Answers
Snooker Angles

Factors

Connect 4 Factors
Delightfully Divisible
Divisibility Test
Factor Trees
Factorising
Fizz Buzzer
HCF and LCM
Number Grids
Pick The Primes
Prime Labyrinth
Prison Cell Problem
Satisfy
Scallywags and Scoundrels
Sieve of Eratosthenes
Stamp Sticking
Three Ways
Times Square

Fractions

Algebraic Fractions
Cheese and Onion Pies
Equivalent Fraction Pairs
Equivalent Fractions
Express as a Fraction
Fraction Decimal Pairs
Fraction Dissect
Fraction Line
Fraction Matcher
Fraction Order
Fraction Percentage
Fraction Percentage Pairs
Fractions
Fractions by Wholes
Fractions, Decimals, Percentages
Inequalities
Mixed Numbers
Recurring Decimals
Vinculum

Fun

23 or Bust
Area Wall Puzzles
Clue Sudoku
Discombobulated
Dominoes Puzzle
Don't Shoot The Square
Dump-A-Dice Race
Estimation Golf
Fifteen
Fizz Buzzer
Fractal Mosaic
Fraction Decimal Pairs
Great Expectation
Green Fingers
Hard Times
Manifest
Mathematician Pairs
Mathopoly
Maze
Mine Find
Misfits
Mystery Numbers
Nim
Number Crunch Saga
Online Psychic
Online Sudoku
Optical Illusions
Pairs 240
Pairs Twenty One
Pattern Clues
Pick The Primes
Remainder Race
River Crossing
Rounding Snap
Shark's Dinner
Shunting Puzzles
Snail Race
Squorder
Sum Game
Superior
T Puzzle
Tables Conga
Tables Dash
Tables Grab
Tangram Table
Tantrum
Thrice
Tran Towers
Tran Tunnels
Tug of War
Watsadoo
Word Search
Yes No Questions

Games

23 or Bust
Algebra Pairs
BIDMAS Game
Choose Your Average
Circle Pairs
Circle Theorem Pairs
Clock Times Pairs
Connect 4 Factors
Digital Darts
Discombobulated
Don't Shoot The Square
Dump-A-Dice Race
Equivalent Fraction Pairs
Fifteen
Fizz Buzzer
Formulae Pairs
Fraction Decimal Pairs
Fraction Percentage Pairs
Graph Equation Pairs
Great Expectation
Hard Times
Hexblock Hunter
Hi-Low Predictions
Indices Pairs
Loci Construction Pairs
Manifest
Mathematician Pairs
Mathopoly
Mine Find
Nevertheless
Nim
Number Crunch Saga
Numerate
Online Sudoku
Pairs 240
Pairs Eleven
Pairs Twenty One
Pick The Primes
Polybragging
Prime Pairs Game
Remainder Race
Rotational Symmetry Pairs
Rounding Snap
Shark's Dinner
Snail Race
Snooker Angles
Square Pairs Game
Squorder
Sum Game
Superior
Tables Conga
Tables Dash
Tables Grab
Tantrum
Tran Towers
Tran Tunnels
Tug of War
Venn Diagram Pairs
Watsadoo
Where's Wallaby?
Yes No Questions

Geometry

Angle Chase
Angle Parallels
Angle Points
Angles in a Triangle
Area Maze
Area of a Triangle
Area Two
Areas of Composite Shapes
Circle Theorems Exercise
Congruent Triangles
Estimating Angles
Formulae Pairs
Measuring Units
Polybragging
Polygon Angles
Polygon Pieces
Polygon Properties
Polygons
Proof of Circle Theorems
Quad Areas
Similar Shapes
Surface Area
Tantrum
Transformations
Vectors
Volume

Graphs

Cartoon Scatter Graph
Circle Equations
Completing the Square
Correlation
Differentiation
Equation of a Line Through Points
Equation of a Straight Line
Estimating Correlation
Fill Graph Pairs
Function Builder
Gradient of a Line
Graph Equation Pairs
Graph Match
Graph Patterns
Graph Plotter
Linear Programming
Parallel Graphs
Pie Charts
Plotting Graphs
Plotting Scatter Graphs
Reading Graphs and Charts
Travel Graphs
Using Graphs
Yes No Questions

Indices

Estimate Powers and Roots
Indices
Indices Pairs
Indices True False
Standard Form
Standard Order

Investigations

Area Builder
Area Two
Frustration
Function Builder
Graph Plotter
Green Fingers
Happy Numbers
Jugs
Largest Product
Prison Cell Problem
River Crossing
Six Keys
Take Baht
Tantrum

LCM

Factor Trees
HCF and LCM

Live Data

Currency Conversion
Heptaphobia Research
Pin Drop

Loci

Constructions
Loci Construction Pairs
Loci Land
Sheep Herding
Where's Wallaby?

Logic

Area Wall Puzzles
Clue Sudoku
Flowchart Bills
Fractal Mosaic
Frustration
Jugs
Mine Find
Not Too Close
Online Logo
Online Sudoku
Pyramid Puzzle
Scheduling Puzzle
Separated Twins
Shunting Puzzles
Squorder
Suko Sujiko
True or False?
Unmagic Square

Memory

Algebra Pairs
Circle Pairs
Formulae Pairs
Formulae to Remember
Indices Pairs
Kim's Quiz
Mathterpieces
Pairs 240
Pairs Eleven
Pairs Twenty One
Rotational Symmetry Pairs
Screen Test
Times Tables
Venn Diagram Pairs

Mensuration

Algebraic Perimeters
Area and Perimeter
Area and Perimeter of a Rectangle
Area Builder
Area Maze
Area of a Trapezium
Area of a Triangle
Area Two
Areas of Composite Shapes
Bottles, Boxes and Cans
Circles
Compound Units
Converting Standard Units
Cylinders
Formulae Pairs
Formulae to Remember
Imperial Units Pairs
Inequalities
Map Scales
Measuring Angles
Measuring Units
Metric Units Pairs
Mileometer
Quad Areas
Reading Scales
Scale Drawings
Screen Test
Similar Shapes
Surface Area
Volume

Mental Methods

23 or Bust
Beat The Clock
Bidmaze
Brainbox
Chain Challenge
Convoluted
Digital Darts
Digivide
Divisibility Test
Dump-A-Dice Race
Eleven In Your Head
Estimation Golf
Expedite
Fast Factors
Furthermore
Grid Arithmetic
Hard Times
Know Your Place
Latin Square Puzzles
Make 1000
Masad
Mixpressions
Nine Nine Nine
No Partner
Number Crunch Saga
Number Skills Inventory
Numskull
One Minute Maths
Pairs 240
Pairs Eleven
Pairs Twenty One
Pick The Primes
Powten
Quick
Stamp Sticking
Sum Game
Sum to One
TablesMaster
Three Ways
Times Tables
Triplets
Triside Totals
Tug of War
Zygo

Mixed

Algebraic Perimeters
Beat The Clock
Chain Challenge
Formulae to Remember
Kim's Quiz
Linear Programming
Mathopoly
Maths Analogies
Maths General Knowledge Quiz
Maze
Mystery Numbers
Number Skills Inventory
Numskull
Pentransum
Snappy Sorting
Topic Test
Tran Towers
Tran Tunnels
Trick Or Treat
True or False?
Weekly Workout

Money

Currency Conversion
Flowchart Bills
Interest
Mathopoly
Money Maths
Overdraft Charges
Stamp Sticking
Take Baht
Thai Restaurant
Unit Pricing

Multiple Intelligences

Code Cracker
Cubical Net Challenge
Fizz Buzzer
Maths Analogies
Mystery Numbers
Paradox
Tables Conga
Tools
Tran Towers

Negative Numbers

Bidmaze
Inequalities
Negative Magic
Negative Numbers
Reading Scales
Temperatures
Think of a Number

Number

Consecutive Numbers
Delightfully Divisible
Dice Net Challenge
Divisibility Test
Don't Shoot The Square
Dump-A-Dice Race
Factor Trees
Fizz Buzzer
HCF and LCM
Hot Numbers
Magic Square Puzzle
Missing Terms
Mix and Math
Nim
No Partner
Number Crunch Saga
Number Grids
Number Jigsaws
Number Skills Inventory
Number Systems
Pairs 240
Pandigital Numbers
Pascal's Triangle
Pick The Primes
Plane Numbers
Powten
Prime Labyrinth
Prime Pairs Game
Prime Square
Prison Cell Problem
River Crossing
Roman Numerals Jigsaw
Roman Numerals Quiz
Satisfaction
Satisfy
Scallywags and Scoundrels
Sieve of Eratosthenes
Square and Even
Square Pairs Game
Stamp Sticking
Suko Sujiko
Three Ways
Times Square
Times Tables
Twelve Days
Venn Diagram
Watsadoo
What Are They?

Percentages

Estimating Percentages
Express as a Percentage
Fraction Percentage
Fraction Percentage Pairs
Fractions, Decimals, Percentages
Interest
Percentage Change
Percentages

Place Value

Centexpression
Great Expectation
Know Your Place
Largest Product
Numbers in Words
One Digit Only
One Minute Maths
Online Psychic
Place Value
Quick
Rounding SF
The Value of Places
Words in Digits

Probability

Frequency Trees
Great Expectation
Hi-Low Predictions
Likelihood
Pascal's Triangle
Pin Drop
Probability
Probability Washing Line
Remainder Race
Snail Race
Superior
Tree Diagrams

Problem Solving

Area and Perimeter of a Rectangle
Area Maze
Area Wall Puzzles
Arithmagons
Bidmaze
Brainbox
Broken Calculator
Car Park Puzzle
Centexpression
Clue Sudoku
Code Cracker
Consecutive Numbers
Cracked Clock Quiz
Digivide
Divisive
Dominoes Puzzle
Double Treble
Fleur-De-Lis
Go Figure
Green Fingers
How Many of Each?
How Many Triangles?
Ice-cream Combinations
Jugs
Largest Product
Ludicross
Magic Square
Mine Find
Mixpressions
Multi-step Problems
Multitude
Nine Digits
Nine Nine Nine
Not Too Close
Number Jigsaws
Numskull
One Digit Only
One Torch Tunnel
Pancake Day
Pentadd Quiz
Pentominoes
Pick Up Sticks
Plane Numbers
Plus
Polygon Pieces
Prime Square
Puzzle Cube Net
Pyramid Puzzle
River Crossing
Roman Numerals Jigsaw
Satisfaction
Satisfy
Scheduling Puzzle
Sheep Herding
Shunting Puzzles
Six Discrimination
Spinsum
Square and Even
Squorder
Stable Scales
Stamp Sticking
Suko Sujiko
T Puzzle
Tangram Table
Tantrum
The Miller's Puzzle
Thrice
Tools
Tower of Hanoi
Trafalgar Square
Tran Towers
Tran Tunnels
Triside Totals
Unitary Method
Unmagic Square
Vector Cops
Where's Wallaby?
Window View
Xmas Presents

Puzzles

Addle
Area Maze
Area Wall Puzzles
Arithmagons
Brainbox
Calculator Words
Car Park Puzzle
Centexpression
Clue Sudoku
Code Cracker
Cryptographic
Cubical Net Challenge
Delightfully Divisible
Digivide
Divisive
Dominoes Puzzle
Double Treble
Fleur-De-Lis
Frustration
Go Figure
How Many Squares? 2
Jugs
Largest Product
Latin Square Puzzles
Lemon Law
Ludicross
Magic Square
Magic Square Puzzle
Maths Crossword
Mine Find
Mixpressions
Multitude
Nine Digits
Nine Nine Nine
No Partner
Not Too Close
Number Jigsaws
Numskull
Olympic Rings
One Digit Only
One Torch Tunnel
Online Psychic
Pancake Day
Pattern Clues
Pentadd Quiz
Pentominoes
Pick Up Sticks
Plane Numbers
Plus
Polygon Pieces
Prime Labyrinth
Prime Square
Pu Wiang
Puzzle Cube Net
Pyramid Puzzle
Quad Areas
River Crossing
Roman Numerals Jigsaw
Satisfaction
Satisfy
Scallywags and Scoundrels
Scheduling Puzzle
Separated Twins
Shapes In The Stars
Shunting Puzzles
Spinsum
Squorder
Suko Sujiko
T Puzzle
Tangram Table
Tantrum
The Broken Chessboard Puzzle
The Miller's Puzzle
Thrice
Tools
Tower of Hanoi
Trafalgar Square
Triside Totals
Truculent
Unmagic Square
Vector Cops
Vowelless
Where's Wallaby?
Window View
Without Lifting The Pencil
Word Search
Xmas Ornaments
Zygo

Pythagoras

Pythagoras
Pythagoras Basics
Where's Wallaby?

Ratio

Direct and Inverse Proportion
Map Scales
Pattern Clues
Ratio
Ratio Clues
Recipe Ratios
Scale Drawings
Similar Shapes
Unit Pricing
Unitary Method

Riddles

Mystery Numbers

Roots

Bidmaze
Estimate Powers and Roots
Surds

Rounding

Rough Answers
Rounding DP
Rounding SF
Rounding Snap
Rounding Ten
Upper and Lower Bounds

Sequences

Arithmetic Sequences
Fibonacci Quest
Geometric Sequences
Interest
Iteration
Matchstick Patterns
Missing Terms
Pascal's Triangle
Quadratic Sequences
Quick Add 'Em Quiz
Tower of Hanoi
Watsadoo

Sets

Number Systems
Set Notation Matching
Venn Diagram
Venn Diagram Pairs
Venn Matching Game
Venn Paint
Venn Totals

Shape

Angle Parallels
Angles in a Triangle
Area and Perimeter of a Rectangle
Area Builder
Area Maze
Area of a Trapezium
Area of a Triangle
Areas of Composite Shapes
Circles
Congruent Triangles
Faces, Edges and Vertices
Formulae Pairs
Fractal Mosaic
How Many Squares? 2
How Many Triangles?
Mathterpieces
Online Logo
Optical Illusions
Polybragging
Polygon Angles
Polygon People
Polygon Pieces
Polygon Properties
Polygons
Quad Areas
Shapes In The Stars
Sheep Herding
Similar Shapes
Tangram Table
Tantrum
Without Lifting The Pencil
Xmas Ornaments
Yes No Questions

Shape (3D)

Cubical Net Challenge
Cylinders
Dice Net Challenge
Faces, Edges and Vertices
Net or Not
Plans and Elevations
Puzzle Cube Net
Similar Shapes
Surface Area
Volume
Yes No Questions

Simultaneous Equations

Algebra In Action
Pentadd Quiz
Recurring Decimals
Simultaneous Equations
Simultaneous Solutions
Using Graphs
Window View

Statistics

Averages
Box Plots
Choose Your Average
Code Cracker
Correlation
Cumulative Frequency
Estimating Correlation
Pie Charts
Pin Drop
Plotting Scatter Graphs

Symmetry

Pattern Clues
Polygons
Rotational Symmetry Pairs
Transformations

Tables

Beat The Clock
Convoluted
Expedite
Fast Factors
Fizz Buzzer
Grid Arithmetic
Hard Times
Number Grids
Sieve of Eratosthenes
Stamp Sticking
Tables Conga
Tables Dash
Tables Grab
TablesMaster
Times Square
Times Tables

Time

Clock Times Pairs
Months of the Year
Telling The Time
Time Sort
Time Totals
Train Timetables
Walking Times

Transformations

Parallel Vectors
Rotational Symmetry Pairs
Transformations
Vector Cops
Vector Maze
Vectors

Trigonometry

Common Trig Ratios
Formulae to Remember
Trigonometry
Trigonometry Advanced
Which Side?

Vectors

Parallel Vectors
Vector Cops
Vector Maze
Vectors

Vocabulary

Circle Pairs
Code Cracker
Hexblock Hunter
In-tents Story
M-Words
Math vs Maths Pairs
Mathanagrams
Maths Crossword
Mystery Numbers
Polygons
Probability Washing Line
Shark's Dinner
Vowelless
Words and Concepts
Words in Digits
Writing Expressions

Xmas

Pascal's Christmas Tree
Twelve Days
Xmas Colouring
Xmas Consonants
Xmas Lights
Xmas Ornaments
Xmas Presents
Xmas Squorder
Xmas Toggle Tree
Xmas Tree Trim
Apple

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