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How can Alice send a message to Bob through the mail while keeping it secret from Eve? https://goo.gl/QWk6vu

#puzzle #logic #secret

#puzzle #logic #secret

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**The Returning Explorer**puzzle.

This is an old classic. See if you can find the non-obvious answers.

https://goo.gl/1Bifgq

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Find out why the symbol for times × and the algebraic x are not the same character?

https://goo.gl/erXPdS

#maths #symbols #history

https://goo.gl/erXPdS

#maths #symbols #history

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How to use simple algebra to calculate 1,999,999×2,999,999.

No calculator needed. https://goo.gl/hXfH1m #maths #algebra #mentalmaths

No calculator needed. https://goo.gl/hXfH1m #maths #algebra #mentalmaths

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How would you explain Euclidean 3D space to a high school student? https://goo.gl/ky2lBt #maths #geometry #highschool #answers

Tewter is an advanced maths revision app for Android helping with GCSE level maths.

We are currently preparing for a new release and we are looking for beta testers.

As a reward for helping the first 20 testers will receive the content of the Essential Algebra chapter for free.

To become a tester please send an email to support@tewter.net

#maths #gcse #revision

We are currently preparing for a new release and we are looking for beta testers.

As a reward for helping the first 20 testers will receive the content of the Essential Algebra chapter for free.

To become a tester please send an email to support@tewter.net

#maths #gcse #revision

Tewter is an advanced maths revision app for Android helping with GCSE level maths.

We are currently preparing for a new release and we are looking for beta testers.

As a reward for helping the first 20 testers will receive the content of the Essential Algebra chapter for free.

To become a tester please send an email to support@tewter.net

#maths #gcse #revision

We are currently preparing for a new release and we are looking for beta testers.

As a reward for helping the first 20 testers will receive the content of the Essential Algebra chapter for free.

To become a tester please send an email to support@tewter.net

#maths #gcse #revision

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Here is another conjecture about the termination on recursive sequences. The Collatz Conjecture, or Syracuse Problem, states that every sequence of the form below terminates in 1, no matter what number you start with. Until now this #conjecture remains #unproven.

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