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Math Fail

From failures in math, funny jokes, cool facts, puzzles, comics… Updated Mon-Fri!

1. Mike December 14, 2011 at 1:00 pm

   The new thing would be to type it into Google and see what that gives, because it does correctly give 10. I suppose people would assume Google is wrong too though…

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2. Blaise December 14, 2011 at 1:14 pm

   Totally going to try this! Is it depressing or hilarious? I can’t decide.

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3. Mike December 14, 2011 at 9:12 pm

   Hidden due to low comment rating. Click here to see.

   Actually, 10+10×0 is technically undefined. The commutative and associative laws of addition and multiplication do not specify whether 10+10×0 ought to be interpreted as (10+10)x0 or 10+(10×0). The supposed ‘addition first, multiplication second’ rule is not mathematics but artificial calculator syntax.

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4. Paul Carr December 15, 2011 at 8:21 am

   Wolfram Alpha says 10, but it all depends on the operator hierarchy convention you have chosen…

   http://www.wolframalpha.com/input/?i=10+%2B+10+*+0

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5. David December 15, 2011 at 6:18 pm

   Okay, I can understand why people would put 0 if left-to-right operations were used. But 20? Seriously?

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6. sam December 15, 2011 at 9:01 pm

   I actually find it refreshing that most people got it correct. Ignorant people tend to speak first so I am not at all bothered by the comments. The banter might have even saved a few of the innumerate so it was all worthwhile.

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