Curated Tumblr

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For preserving the least toxic and most culturally relevant Tumblr heritage posts.

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# This has been reposted here to Lemmy as part of the "Curated Tumblr Project."

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Hungry 9 (lemmy.likes.cat)

submitted 6 hours ago by sag@lemm.ee to c/curatedtumblr@sh.itjust.works

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[–] smeg@feddit.uk 34 points 4 hours ago (3 children)

Mental arithmetic is all little tricks and shortcuts. If the answer is right then there's no wrong way to do it, and maths is one of the few places where answers are right or wrong with no damn maybes!

[–] skulbuny@sh.itjust.works 2 points 5 minutes ago

Unless you consider probabilities. That's a very strange field—you can't objectively verify it.

[–] Email@lemmy.world 6 points 1 hour ago (1 children)

Unsolved problems do not all fall into binary outcomes. They can be independent of axioms (the set of assumptions used to construct a proof).

[–] smeg@feddit.uk 3 points 33 minutes ago

I like your funny words, mathemagic man

[–] taladar@sh.itjust.works 6 points 2 hours ago

Well, there are certainly wrong ways to arrive at the answer, e.g. calculating 2+2 by multiplying both numbers still gets you 4 but that is the wrong way to get there. That doesn't apply to any of the methods in the post though.