A game, a puzzle and a challenge involving counters being placed at the corners of a square on a grid.
Scallywags and Scoundrels
Arrange the scallywags and scoundrels on the chairs so that the numbers of any two sitting next to each other add up to a prime number.
Can you arrange all of the counters on the grid to form 10 lines of three counters?
Arrange the dominoes in seven squares. The number of dots along each side of the square must be equal to the number in the middle
Nine Nine Nine
Use the digits 1 to 9 to make three 3 digit numbers which add up to 999.
Arrange the numbers on the squares so that the totals along each line of three squares are equal.
Maths Mind Reader
Investigate this amazing mind reading performance based on simple mathematical principles.
Circle Theorem Pairs
A pairs game based around ten theorems about the angles made with chords, radii and tangents of circles.
The hardest multiplication facts (according to Transum research) are presented in the form of pairs games.
One Minute Maths
A challenge to mentally add numbers together without making the classic place value mistakes.
Find your way through the maze encountering mathematical operations in the correct order to achieve the given total.
Arrange the numbers given in standard form with the smallest at the top and the largest at the bottom.
23 or Bust
A game involving mental arithmetic and strategy for two players or one player against the computer.
Crack the code by finding out which letters replace the encrypted letters in the text given. There are lots of hints provided about code breaking techniques.
An online darts game for one or two players requiring skill, strategy and mental arithmetic.
An online interactive game celebrating the order of mathematical operations.
Clock Times Pairs
The traditional pairs or Pelmanism game adapted to test the ability to compare analogue and digital times.
The traditional pairs or Pelmanism game requiring the ability to recognise some of the great mathematicians.
Months of the Year
Match the month name with the month number in this drag and drop activity
Advertise on Transum
Click the image above to read more about how your company can place an advert on Transum.org
A number line showing tenths and hundredths with draggable arrows. This is a visual aid designed to be projected onto a whiteboard for whole class exposition
Tower of Hanoi
Move the pieces of the tower from one place to another in the minimum number of moves.
Fraction Decimal Pairs
The traditional pairs or Pelmanism game adapted to test knowledge of simple fractions and their equivalent decimals.
Arrange the given numbers on the cross so that the sum of the numbers in both diagonals is the same.
Equivalent Fraction Pairs
The traditional pairs or Pelmanism game adapted to test knowledge of equivalent fractions.
Arrange numbers on the plane shaped grid to produce the given totals
Cheese and Onion Pies
Sort the fractions from smallest to largest.
Earn points by creating equations on the grid in this game of equations.
Arrange the sheep in the field according to the instructions. An introduction to loci.
The Transum version of the traditional sliding tile puzzle.
Online, interactive jigsaw puzzles of grids of numbers.
Roman Numerals Jigsaw
An online interactive jigsaw puzzle of a grid of Roman numerals.
The Transum version of the Top Trumps game played online with the properties of polygons.
Car Park Puzzle
Can you get your car out of the very crowded car park by moving other cars forwards or backwards?
The six button has dropped off! How could these calculations be done using this calculator?
Formulae to Remember
The traditional pairs or pelmanism game adapted to test recognition for formulae required to be memorised for GCSE exams.
Can you find a 6 digit number containing two each of the digits one to three which obeys the rules given?
Telling The Time
Practise reading a clock face and making simple time calculations.
Without Lifting The Pencil
Can you draw these diagrams without lifting your pencil from the paper? This is an interactive version of the traditional puzzle.
The traditional River Crossing challenge. Can you do it in the smallest number of moves?
Arrange the numbers from 1 to 6 in the spaces to make the division calculation correct.
A self marking exercise on the reading of scales of different types.
Cartoon Scatter Graph
Place the cartoon characters on the scatter graph according to their height and age.
How many different shapes with an area of 2 square units can you make by joining dots on this grid with straight lines?
Change the numbers on the apples so that the number on the lemon is the given total.
Move the numbered cards to form five 2 digit numbers which obey the given rules.
Interactive, randomly-generated, number-based logic puzzle designed to develop numeracy skills.
Arrange the numbers from 1 to 14 in the spaces to make the sums correct.
Pairs Twenty One
Find the pairs of numbers that add up to 21.
Interactive number-based logic puzzles similar to those featuring in daily newspapers.
Find the matching pairs of circle diagrams and circle properties in this interactive online game.
Drag the numbered cards to produce a multiplication fact. Complete twenty mixed times tables questions to earn a trophy.
A game of buying and selling property with maths questions thrown in for good measure.
Connect 4 Factors
This a game for one or two players. The winner is the first to line up four numbers with a common factor.
Sieve of Eratosthenes
A self checking, interactive version of the Sieve of Eratosthenes method of finding prime numbers.
Number Crunch Saga
A lively numeracy game requiring you to align three numbers to create the given target sum or product.
Some of the buttons are missing from this calculator. Can you make the totals from 1 to 20?
The traditional pairs or pelmanism game adapted to test knowledge of indices.
Find the path to the centre of the labyrinth by moving along the prime numbers.
Draw the transformations of shapes involving reflection, translation, rotation and enlargements.
The full list of activities can be seen here:
Successfully complete an activity and you will earn a Transum Trophy. Collect trophies in your own personal Transum Trophy cabinet and, for some activities, you can work on improving your personal best Transum scores.
In addition to the activities on this website Transum has some favourite iPad apps. They are available here when you are signed in to your Transum subscription account. If you do not yet have an account and you are a teacher or parent you can apply for one here.
A Transum subscription also gives you access to the 'Class Admin' student management system and opens up ad-free access to the Transum website for you and your pupils.
Did you know that it is very easy to add an icon for a Transum activity to your iPad home screen? You can find instructions here.
Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for those learning Mathematics anywhere in the world. Click here to enter your comments.
For more advice, ideas on suggestions on using one-to-one computing devices in the classroom see Laptops in Lessons.