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By (user no longer on site)
over a year ago
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It is actually a set of numbers, interspersed with symbols.
As a mathematical expression it is unanswerable without brackets to denote the order of the operators could be -432 +342 or +2
Next? |
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By (user no longer on site)
over a year ago
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"As a mathematical expression it is unanswerable without brackets to denote the order of the operators could be -432 +342 or +2
Wrong. Back to school for you."
Damn forgot to show my workings again 
But you missed out the correct first paragraph  |
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BODMAS!
.
1. Brackets & Orders (like 3²)
2. Division & Multiplication
3. Addition & Subtraction
.
For each of the latter categories, it’s best to essentially convert division into a multiplication (so 10 ÷ 5 is 10 x 1/5, etc.) and subtraction into an addition (so 10 - 5 is 10 + (-5)).
.
In the above instance there are no brackets or orders, so we do the multiplication first, which gives us 60 and 63. So then it’s 5 + 60 - 63. So the answer is 2. Accept no other answer. |
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By (user no longer on site)
over a year ago
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"Is a minus times a plus a plus or a minus. I forget.
BODMAS!
.
1. Brackets & Orders (like 3²)
2. Division & Multiplication
3. Addition & Subtraction
.
For each of the latter categories, it’s best to essentially convert division into a multiplication (so 10 ÷ 5 is 10 x 1/5, etc.) and subtraction into an addition (so 10 - 5 is 10 + (-5)).
.
In the above instance there are no brackets or orders, so we do the multiplication first, which gives us 60 and 63. So then it’s 5 + 60 - 63. So the answer is 2. Accept no other answer."
Its actually bidmas now. They've change the order to indices. |
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By (user no longer on site)
over a year ago
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"BODMAS!
.
1. Brackets & Orders (like 3²)
2. Division & Multiplication
3. Addition & Subtraction
.
For each of the latter categories, it’s best to essentially convert division into a multiplication (so 10 ÷ 5 is 10 x 1/5, etc.) and subtraction into an addition (so 10 - 5 is 10 + (-5)).
.
In the above instance there are no brackets or orders, so we do the multiplication first, which gives us 60 and 63. So then it’s 5 + 60 - 63. So the answer is 2. Accept no other answer."
This is going to get you a shit tonne of meets.
Clear your diary for the next year.
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By (user no longer on site)
over a year ago
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"Is a minus times a plus a plus or a minus. I forget.
You are suppose to be the brain  "
It's leaking. Sponges do that as they fill up.
Anyway, my last mathematics class was almost 40 years ago; how am I supposed to remember that far back when I can't remember stuff from yesterday  |
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By (user no longer on site)
over a year ago
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Question.... we read left to right, and have priority weighting on operators of (, x ÷, + -
Is that globally true? I.e. do Chinese or Arabic countries apply the same mathematical order? |
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By (user no longer on site)
over a year ago
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"BODMAS!
.
1. Brackets & Orders (like 3²)
2. Division & Multiplication
3. Addition & Subtraction
.
For each of the latter categories, it’s best to essentially convert division into a multiplication (so 10 ÷ 5 is 10 x 1/5, etc.) and subtraction into an addition (so 10 - 5 is 10 + (-5)).
.
In the above instance there are no brackets or orders, so we do the multiplication first, which gives us 60 and 63. So then it’s 5 + 60 - 63. So the answer is 2. Accept no other answer."
That's how I remember doing it at school. |
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By (user no longer on site)
over a year ago
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"What is 5+4*15-21*3?
Got confused....now my dick is stuck in the toaster
Never do mental arithmetic while you're making toast. "
No, toast us too important for disteactions  |
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By (user no longer on site) OP
over a year ago
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"BODMAS!
.
1. Brackets & Orders (like 3²)
2. Division & Multiplication
3. Addition & Subtraction
.
For each of the latter categories, it’s best to essentially convert division into a multiplication (so 10 ÷ 5 is 10 x 1/5, etc.) and subtraction into an addition (so 10 - 5 is 10 + (-5)).
.
In the above instance there are no brackets or orders, so we do the multiplication first, which gives us 60 and 63. So then it’s 5 + 60 - 63. So the answer is 2. Accept no other answer."
Correct. |
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By (user no longer on site)
over a year ago
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"Question.... we read left to right, and have priority weighting on operators of (, x ÷, + -
Is that globally true? I.e. do Chinese or Arabic countries apply the same mathematical order?"
Not found a definitive answer though found a statement that long ago Chinese wrote equations top to bottom, which would indicate they may now copy the western left to right format. |
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By (user no longer on site) OP
over a year ago
|
"Question.... we read left to right, and have priority weighting on operators of (, x ÷, + -
Is that globally true? I.e. do Chinese or Arabic countries apply the same mathematical order?
Not found a definitive answer though found a statement that long ago Chinese wrote equations top to bottom, which would indicate they may now copy the western left to right format."
The way it's written doesn't really matter as long as it is consistent as the way a formula is written down will be defined by whatever system is in use. The order of operators however must be the same. |
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