I like the version where these problems are made purposefully ambiguous
None of them are ambiguous. They all have only 1 correct answer, just like this one only has 1 correct answer. They all test if people remember the order of operations rules. Those who got it wrong, don't.
did addition before subtraction instead of left to right
No, what you actually did was put it inside brackets, thus changing the number of terms. Doing addition first gives the exact same answer as doing subtraction first...
subtraction first 10-1+1=9+1=10
addition first 10+1-1=11-1=10
You did 10-(1+1), hence the wrong answer. It doesn't matter which order you do it, though often students make mistakes with signs when they change the order, which is why we teach to do left to right.
Grog write left to right.
Gorg is from another country and writes right to left.
Grog read left to right.
Gorg reads right to left
Grog do sum left to right
Gorg does sums right to left
Juxtaposition of a number in front of any expression implies multiplication!
You think 10 means 1x0?
Fucking addition?
No, place value. It's not juxtaposition unless you have brackets and/or pronumerals in the term
I’ve always wanted to look into/prototype the code-style declaration of UI in code rather than XML
Um, ok. That's weird, because the blog post is from just last week
(Not so) Fun fact: I first learnt how to use Xamarin from a book he wrote. It wasn't very good (not unlike Microsoft documentation). He started out just having everything in MainPage, then switched to having separate classes (like MVVM stuff), but didn't point out he had made this switch! The code snippets didn't reflect that this was actually now in a different class! Wait what?? Wait what?? Why is none of this working?! 😂 There was a later chapter about MVVM, but he had switched styles BEFORE that chapter. So when he talks about top-down and bottom-up, well, his book was an explode in the middle approach! 😂
I didn't! It's working for me.
the worst order of operations thing imo is with the denominator in division, many people say that 1/4x should be read as (1/4) * x and not 1/(4x)
Oh god yes. I have a whole thread dedicated to it with textbook screenshots, etc. at Order of operations thread index
although I think this is usually the less popular option in polls
Depends on how many adults have forgotten the rules, since that's what the poll is really tracking. Students have no issue with getting them correct (we're talking like 98% correct).
apparently wolfram alpha does it that way, as well as most newer graphing calculators (TI switched between the ti-82 and ti-83)
In both cases they're disobeying The Distributive Law, and so are demonstrably wrong
Joke is democracy doesn’t always get it right
Yes, but more to the point it's adults who've forgotten the rules. Students don't have any issue with this. Exact same applies to all the order of operations memes floating around, like 6/2(1+2) - students have no trouble with it, it's adults who've forgotten the rules who argue about it.
No it isn't. Multiplication is defined as repeated addition. Division isn't repeated subtraction. They just happen to have opposite effects if you treat the quotient as being the result of dividing.