Oh dear - a puzzle for Christmas season - Dec 2023
Dec 13, 2023 07:47:24 #
Boris77 wrote:
Do not agree with silly chart. With no brackets or other distractions, operations go left to right, add then multiply. Answer is 35. Unless you are from a country that writes right to left.
Boris
Boris
Try putting =4+3*5 in an Excel cell and see what it calculates......
OR Google.....
Dec 13, 2023 08:12:25 #
petrochemist
Loc: UK
John N wrote:
42. Everything equals 42, no matter the question.
Not 'everything' but 42 is the ultimate answer, so I can't fault your reasoning :)
Dec 13, 2023 08:52:23 #
Dec 13, 2023 10:37:10 #
Wyantry
Loc: SW Colorado
Boris77 wrote:
Do not agree with silly chart. With no brackets or other distractions, operations go left to right, add then multiply. Answer is 35. Unless you are from a country that writes right to left.
Boris
Boris
Mathematical operations have a specific order of usage.
“The order of operations says that operations must be done in the following order: P — parentheses, E — exponents, M — multiplication, D — division, A — addition, and S — subtraction.” [Mnemonic is PEMDAS]
SOURCE: https://content.byui.edu › Math-1-6-1
Order of Operations
~~~~~~~~~~
Applying the Order of Operations (PEMDAS)
The order of operations says that operations must be done in the following order: parentheses, exponents, multiplication, division, addition, and subtraction.
Parentheses [or brackets]
When there are parentheses, whatever is inside must be done first. The stuff inside the parentheses may also need to be broken down according to the order of operations as well. It is even possible to have parentheses within parentheses. In cases like this, work from the inside out.
Exponents
If there are exponents in the equation, these would be done next.
Multiplication and Division [left to right]
Multiplication and division can be done together. In other words, it doesn’t matter if you do division or multiplication first, but they must be done after parentheses and exponents and before addition and subtraction.
Addition and Subtraction [left to right]
Addition and subtraction also work together. You can do subtraction first, or you can do addition first. They are part of the same step, however, they can only be done after items in parentheses, exponents, and any multiplication and division.
SOURCE: https://content.byui.edu/file/b8b83119-9acc-4a7b-bc84-efacf9043998/1/Math-1-6-1.html#
Dec 13, 2023 12:18:54 #
twosummers wrote:
Hi there puzzlers - have a go at this one - suggest an answer but DON'T give your method (I want to keep people guessing for a bit) - I'll post the solution in a few days time
Enjoy
Enjoy
Dec 13, 2023 12:24:32 #
twosummers wrote:
Hi there puzzlers - have a go at this one - suggest an answer but DON'T give your method (I want to keep people guessing for a bit) - I'll post the solution in a few days time!
Enjoy
Enjoy
24. From formula two, the tables each are = to 4 so in formula three 4 +4x5 = 4 + 20 = 24
Bud
Dec 13, 2023 12:48:01 #
Wyantry
Loc: SW Colorado
Boris77 wrote:
Wrong, Wrong, Wrong. I do it my way. I'd get out my old school books but Mom threw them away 60 years ago when I joined the Military.
Boris
Boris
Do it your way and you will be WRONG!
SEE: “order of mathematical operations”. Type it into a browser or Google. PEMDAS is the mnemonic.
LEARN SOMETHING! That most people already know.
Dec 13, 2023 12:52:35 #
BudsOwl wrote:
24. From formula two, the tables each are = to 4 so in formula three 4 +4x5 = 4 + 20 = 24
Bud
Bud
But the table in the last line only has three legs......
Dec 13, 2023 13:14:20 #
Longshadow wrote:
But the table in the last line only has three legs......
Exactly; that just makes it different; it doesn't mean that its value is 3 -
Dec 13, 2023 13:16:19 #
srt101fan wrote:
Exactly; that just makes it different; it doesn't mean that its value is 3 -
oooookay.......
Perception.
I would not recommend translating hieroglyphics...
Dec 13, 2023 13:22:33 #
Dec 13, 2023 13:25:48 #
Longshadow wrote:
oooookay.......
Perception.
Perception.
I just thought we needed a contrarian view here; can't just let everybody jump on the "19" bandwagon.
Coming to think of it, a lot of folks here didn't....and a lot of folks still don't....
Dec 13, 2023 13:50:52 #
srt101fan wrote:
I just thought we needed a contrarian view here; can't just let everybody jump on the "19" bandwagon.
Coming to think of it, a lot of folks here didn't....and a lot of folks still don't....
Coming to think of it, a lot of folks here didn't....and a lot of folks still don't....
I wonder how many think Excel would be wrong.....
Dec 13, 2023 13:55:08 #
Dec 13, 2023 14:05:54 #
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