A clever question on my daughter's latest maths homework, as it's easy, but only if you don't try to do too much. The numbers 1 to 8 are placed on the vertices of a cube in such a way that the total on the vertices of each face is the same. What is the total on each face?
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Replying to @roger_mansuy
She's 10. The method you used is what I used at first, but then I realized there's an even simpler approach ...
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Replying to @wtgowers @roger_mansuy
Not sure if I’m following but would be interested to learn the even simpler approach
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Replying to @judenonesuch @roger_mansuy
It's to consider two opposite faces rather than all six faces.
10 replies 0 retweets 104 likes -
Yeah I did it the lazy quick way coz I’m inherently naughty.
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Naughtiness is a very important mathematical quality.
2 replies 8 retweets 53 likes
@paulg reminds me of something you’d say in a talk
3:09 PM - 1 Jul 2021
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