

Transum.orgThis 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. 
More Activities: 

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 18 September 'Starter of the Day' page by Mrs. Peacock, Downe House School and Kennet School: "My year 8's absolutely loved the "Separated Twins" starter. I set it as an optional piece of work for my year 11's over a weekend and one girl came up with 3 independant solutions." Comment recorded on the 25 June 'Starter of the Day' page by Inger.kisby@herts and essex.herts.sch.uk, : "We all love your starters. It is so good to have such a collection. We use them for all age groups and abilities. Have particularly enjoyed KIM's game, as we have not used that for Mathematics before. Keep up the good work and thank you very much 
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. 

Numeracy"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 MathsLearning 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.  
Teachers  
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 Transum.org should go offline for whatever reason, there are mirror sites at Transum.com and Transum.info that contain most of the resources that are available here on Transum.org. When planning to use technology in your lesson always have a plan B! 
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. 
© Transum Mathematics :: This activity can be found online at:
www.Transum.org/go/?Num=1001
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Level 1  Calculations containing 5 numbers and symbols
Examples: 1+2=3 or 6=8−2
Level 2  Calculations containing 6 numbers and symbols
Examples: 3×4=12 or 5=149
Level 3  Calculations containing 7 numbers and symbols
Examples: 2Ã—2Ã—2=8 or 5âˆ’3=2Ã·1
Level 4  Calculations containing 8 numbers and symbols
Examples: 9Ã—6=58âˆ’4 or 4+5+9=18
Level 5  Calculations containing 9 numbers and symbols
Examples: 9^2=24+57 or âˆš16=67âˆ’63
Vocabero  A similar game requiring you to guess a mathematical word.
Mathstermind  The Transum version of that old game requiring you to guess a number.
More Puzzles  all with a mathematical theme.
Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you donâ€™t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.
Currently the greatest number of points earned in the last month for this level (Level 1) has been achieved by Spencerr0522 with 125 points on Monday, May 16, 2022. Can you beat that? If you can make sure you claim a trophy because that is how good scores are officially recognised.
Spencerr0522
125 points
Suppose I am thinking of the calculation 1+2=3
You have to try and gress what my calculation is.
For your first guess you may type in 41=3
When you have finished typing the tiles will change colour. The colours are the clues:
Now have another guess at my calculation. Use the clues that you have been given.
Each of your guesses (for Levels 1 to 4) should be a correct mathematical equation (two equivalent expressions with an equals sign between them).
You will earn points for guessing my calculation correctly. When you have earned enough points you can claim a trophy.
Here is an example from level 4:
I hope you enjoy working on these puzzles and I wish you many green tiles!
Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you donâ€™t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.
BIDMAS is an acronym reminding pupils of the order of operation used when evaluating expressions involving a number of different operations. The letters of BIDMAS stand for:
When only addition and subtraction (or only multiplication and division) are left in an expression you should work them out in the order you find them, starting from the left and working towards the right. The blue image of the letters above has been designed to show that multiplication and division have the same importance as the letter M is in the same position as the letter D. The same can be said for the letters A and S.
For example, to evaluate the expression 3^{2} + 5 x 7  (4  3)
Work out the brackets first which gives 3^{2} + 5 x 7  1
Then the indices 9 + 5 x 7  1
Then the multiplication 9 + 35  1
Then the addition and subtraction in the order they are given
The answer is 43
PEMDAS is an alternative acronym.
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Transum,
Saturday, January 8, 2022
"It is not sufficient just to find an expression thatâ€™s true but to find the exact expression that I was thinking of. For example 61=5 while true would not be correct if I am thinking of 6=1+5."
Fiona Rosler, Twitter
Monday, February 7, 2022