Sum of the Signs

Starter of The Day Transum Mathematics Topics

Mr. H, Mary Hare School
Chloe found a different solution.
The Best Maths Class Ever. 7cd/M2, King Alfred's College, Oxfordshire UK
Jack, Georgina and Patrick found the solution very quickly. Olivia found out that the top column was the same as the right side column. Some of us found it hard (including sir!!).
Year 9, Leicester
Very hard and dodgy answers!
Maybe a good starter for older classes.
Transum,
Thanks for the comments above. They refer to the randomly generated puzzle which you can see by pressing the button below. The puzzle you see the first time you visit this page should be reasonable for a 10 to 14 year old to solve and has a unique solution. Let us know how it works for your students.
Apex Year5/6, Apex Primary
At Apex, our year5/6 class found is quite easy! but a good starter :).
Selina, Stanwell Fields
Easy for us 6 year 6.
Karris, Oxford University
Easy! The Class love it.
Mrs Webster, Brackenwood Junior School
On the whole Y4 enjoyed this task but some children found it quite tricky.
Mjd School, 6
This is cool for the year 6.
8E, Friary
8E at Friary School found this 'a bit easy'! Something a bit more challenging please!

[Transum: Well done 8E. Did you scroll down the page and see the extension?]

How did you use this starter? Can you suggest how teachers could present or develop this resource? Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for Maths teachers anywhere in the world.
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Previous Day | This starter is for 11 March | Next Day

Answers

Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.

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	Teacher, do your students have access to computers? Do they have iPads or Laptops in Lessons? Whether your students each have a TabletPC, a Surface or a Mac, this activity lends itself to eLearning (Engaged Learning).

Here a concise URL for a version of this page without the comments.

Transum.org/go/?Start=March11

Most of the picture sum puzzles shared on social media (including the one above) can be solved as linear equations. The following activity called Unbeknownst generates situations best solved using simultaneous equations. There are a number of different levels of difficulty and each level can be regenerated to produce a different puzzle. The link is here:

Transum.org/go/?Num=906

Extension

The answer to this puzzle is not 12. What is it?

Extension Answers

Beyond Extension

The following puzzle has been doing the rounds on Facebook. I have tried to find the source of this image but have been unsuccessful. If you know where it comes from please let me know. No copyright infringement is intended.

				= 14
				= ?
				= ?
				= 19
= 20	= 8	= ?	= ?