Hot Numbers











This web site contains over a thousand free mathematical activities for teachers and pupils. Click here to go to the main page which links to all of the resources available.

Please contact me if you have any suggestions or questions.

Email address

Mathematicians are not the people who find Maths easy; they are the people who enjoy how mystifying, puzzling and hard it is. Are you a mathematician?

Comment recorded on the 19 November 'Starter of the Day' page by Lesley Sewell, Ysgol Aberconwy, Wales:

"A Maths colleague introduced me to your web site and I love to use it. The questions are so varied I can use them with all of my classes, I even let year 13 have a go at some of them. I like being able to access Starters for the whole month so I can use favourites with classes I see at different times of the week. Thanks."

Comment recorded on the 19 June 'Starter of the Day' page by Nikki Jordan, Braunton School, Devon:

"Excellent. Thank you very much for a fabulous set of starters. I use the 'weekenders' if the daily ones are not quite what I want. Brilliant and much appreciated."

Each month a newsletter is published containing details of the new additions to the Transum website and a new puzzle of the month.

The newsletter is then duplicated as a podcast which is available on the major delivery networks. You can listen to the podcast while you are commuting, exercising or relaxing.

Transum breaking news is available on Twitter @Transum and if that's not enough there is also a Transum Facebook page.

Featured Activity

Number Crunch Saga

Number Crunch Saga

A lively numeracy game requiring you to align three numbers to create the given target sum or product. There are five levels to this online game and a virtual Transum Trophy available for each level.


"Numeracy is a proficiency which is developed mainly in Mathematics but also in other subjects. It is more than an ability to do basic arithmetic. It involves developing confidence and competence with numbers and measures. It requires understanding of the number system, a repertoire of mathematical techniques, and an inclination and ability to solve quantitative or spatial problems in a range of contexts. Numeracy also demands understanding of the ways in which data are gathered by counting and measuring, and presented in graphs, diagrams, charts and tables."

Secondary National Strategy, Mathematics at key stage 3

Go Maths

Learning and understanding Mathematics, at every level, requires learner engagement. Mathematics is not a spectator sport. Sometimes traditional teaching fails to actively involve students. One way to address the problem is through the use of interactive activities and this web site provides many of those. The Go Maths main page links to more activities designed for students in upper Secondary/High school.


If you found this activity useful don't forget to record it in your scheme of work or learning management system. The short URL, ready to be copied and pasted, is as follows:

Alternatively, if you use Google Classroom, all you have to do is click on the green icon below in order to add this activity to one of your classes.

It may be worth remembering that if should go offline for whatever reason, there are mirror site at that contains most of the resources that are available here on

When planning to use technology in your lesson always have a plan B!

Mr Kemp's Mathemagicians, Monkseaton High School

Tuesday, July 10, 2007

"Arrange the cards to make five two digit numbers to make a total of 270"

Lucy Green, Broadfields

Wednesday, July 11, 2007

"Find 5 even 2-digit multiples of 9."

Miss Reeve, Swansea

Monday, December 3, 2007

"Find 5 2 digit numbers divisible by 9 ie


Mrs Simpson and 2D1, Torry Academy, Aberdeen

Wednesday, December 5, 2007

"2D1 challenge you to arrange the cards on the white rectangles to create 5 two digit numbers which have the smallest possible median."

Zachary Taylor, George Abbot School

Wednesday, December 5, 2007

"Arrange the 2 digit numbers in the rectangles so that the sum of the 5 numbers is 270"

Hasland Hall 8X2 (CW), Hasland Hall Community School

Tuesday, December 18, 2007

"5 two digit numbers which have a mean of 72 and median of 72"

Christopher, Clacton-on-Sea

Monday, February 25, 2008

"We challenge you to make the mean of 36 by using 5 two digit numbers"

Johndr De Kock, Qld

Wednesday, April 16, 2008

"Multiples of nine"

Matt, Australia

Thursday, April 17, 2008

"Arrange the cards to make five two digit numbers to have a total of 297"

Aby, London

Wednesday, November 26, 2008

"Arrange the cards on the white rectangles to create five 2 digit numbers that has total of 282."

BISNY Year 7, New York

Monday, December 1, 2008

"To include 3 square numbers and all five numbers to have a median of 40, a range of 72 and a mean of 214.2"

7 X- FACTOR... , Seaford College

Tuesday, December 2, 2008

"Work this out!! You have to use four square numbers and the fifth number has to be even. They have to add up to 261. Good Luck!!!"

James, The Atkinson School

Tuesday, December 2, 2008

"Arrange the numbers into 5 two digit numbers with an average of 54."

Abbie Vickers, Notley High School

Tuesday, December 2, 2008

"Find five 2 digit numbers that are all a multiple of 6 and have a range of 72"

Dennis Gardener, New College Telford

Tuesday, December 2, 2008

"Arrange to make 5 two-digit cards that are all multiples of 9 with a range of 72."

Nicky, England

Wednesday, December 3, 2008

"Make five 2 digit numbers that have a mean of 30."

Year 9 set 1 Maths, Retford Oaks High School

Friday, December 5, 2008

"What 5, 2 digit even numbers, when multiplied together, equal 205,747,200"

Year 11 CLI Maths group, Broadwater School

Friday, December 5, 2008

"Find five 2 digit numbers which are multiples of 9."

R. Smith, Dylan Thomas School

Friday, February 13, 2009

"Arrange the cards to give four even numbers which have a mean that is two bigger than their median."

Onene, Leeds

Sunday, November 29, 2009

"Make 2 digit numbers that are all multiples of 6."

9 Set 4, Dyson Perrins Sports College

Tuesday, December 1, 2009

"Get the highest possible total, and then the lowest possible total. and what do you notice about these totals?"

9 Set 4, Dyson Perrins C Of E Sports College

Tuesday, December 1, 2009

"Make 216 with even numbers,."

7LIN, Farlingaye High School

Wednesday, December 2, 2009

"Pick 5 two digit numbers that multiply together to make 128701440."

John Rogers And Joel McEvoy-Swift, St James CEVA Middle School

Friday, December 4, 2009

"Create 5 2 digit numbers which are all multiples of NINE."

Minjoo, REGO

Monday, December 14, 2009

"Form five 2-digit numbers that have a range of 57 and a sum of 198."

Zofija, Vermont

Tuesday, November 30, 2010

"Make five two diget numbers with the median being 63."

Year 7 Set 2, Liverpool College

Thursday, December 2, 2010

"Find five 2 digit numbers that multiply together to make 45273200."

Hugo Glover, Filey School North Yorkshire England

Friday, December 2, 2011

"Five 3 digit numbers that are all multiples of 6."

Mr. Rexhausen, Thurgood Marshall

Friday, January 27, 2012

"Five two digit numbers that are even multiples of three with the smallest range."

Maple Class, Twitter

Tuesday, April 19, 2016

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