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-UE
If you use an @yahoo.com email or any related Yahoo services, they have blocked us also due to "user complaints"
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Your Aunt Sally is excused.
Now please leave me alone while I try to remember how to do this math problem!
Comments
BIDMAS / BODMAS > PEMDAS.
What does the E even stand for?
Exponents.
"Indices" or "Orders", I think.
Also, the B wouldn't work in America because Americans don't usually call ( and ) brackets.
Indices/Orders.
The O can also be used to spell "Brackets Over Division, Multiplication, Addition, Subtraction" when you teach primary schoolers.
The word "order" is used in the phrase "orders of magnitude", which has to do with powers of ten.
Also, we always call 4² either 'orders' or 'to the power of'.
I don't think I've heard anyone use "orders" that way.
If the exponent is 2, we'd almost always just say "squared".
For anything else we usually say "to the power of", or just "to the", e.g. in 4^2 as "four to the two".
EDIT: why did the superscript work for Nova but not for me?
You also probably see people spell 'colour' as 'color'.
No, it's "four squared".
"Orders of magnitude" is a term used to say roughly how big really big numbers are. Like, a crowd of 100,000 people is not just larger but a several orders of magnitude larger than a crowd of 10 people.
There's also the terms "[nth]-order approximation" and "[nth]-order derivative", which is derived (no pun intended) from the use of exponent notation to indicate taking the derivative of stuff multiple times.
Touché.
I don't know why these little discussions of regional language differences fascinate me so much.
Most people I know (by which I mean, all my math instructors) have mostly used the cardinals. I don't know why; "to the fifth" certainly makes more sense than "to the five".
You'd say 'to the second' in a formal setting, but to myself or in a study group or something, I'd say 'three to the four', not 'three to the fourth'.
What Nova said.
If i'm not mistaken, 'indices' is intended to be more inclusive since it also covers nth roots.
You know, that makes sense. The omission of roots always bugged me in the American one.
ahahaha silly people and your mnemonics
You see it used for powers of 2 sometimes. And programming doesn't even bother to specify a base.
And roots are just fractional exponents, so there's not really any need to include them.
How many people being taught this mnemonic (i.e. late elementary and early middle schoolers) are actually going to understand the concept of fractional exponents, though?
100% if you say "hey, you know how addition and subtraction are the same operation? Exponents and roots are like that too, and you'll learn why later."
Actually, once we got to roots I'd teach it as a fraction exponent to begin with and use that to lead into how "stacked" exponents multiply.
Roots being fractional exponents is probably easier to convince an eleven-year-old of than x^0 = 1.
I'm pretty sure that you teach young kids My Dear Ant Sally, and only when they get into higher arithmetic or basic algebra do you tell them Please Excuse.
Maybe in American schools, dude.
I had never heard of order of operations until grade 7 when they taught BEDMAS. Which I believe was concurrently taught with brackets being a thing.