Math Test
Feb 21, 2019 22:11:08 #
Dikdik
Loc: Winnipeg, Canada
speters wrote:
The 3x3 was not in parenthesis, so I'm not sure if it has to be done first in this case, although there may be a rule for such.
If in parenthesis it's done first... not in parenthesis, it's still done first.
Dik
Feb 21, 2019 22:21:29 #
Feb 22, 2019 05:50:35 #
Feb 22, 2019 05:55:54 #
Shellback wrote:
PEMDAS or br Parentheses br Exponents br Multip... (show quote)
There were no brackets.
Feb 22, 2019 05:57:06 #
chippy65
Loc: Cambridge
Me.........I'm simple...........I see -3 with +3........they cancel one another out ?
Feb 22, 2019 06:29:47 #
jerryroelk
Loc: Lehigh Acres, FL
Rules of math operations.
Best remembered as “Please Excuse My Dear Aunt Sally” Parentheses Exponents Multiplication Working left to right Division Addition Subtraction
Best remembered as “Please Excuse My Dear Aunt Sally” Parentheses Exponents Multiplication Working left to right Division Addition Subtraction
Feb 22, 2019 06:40:53 #
Feb 22, 2019 07:21:23 #
RavineCat
Loc: Worthington, Ohio
In the real world, where we read left to right and use math to solve real stuff, the answer is 18. If there are no parentheses there are no parentheses. In the math world, of which I know next to nothing, and which I used to sort of think was sort of the real world, there seems to be clever ways of seeing parentheses that are not visible, and several different ways to come up with several different correct answers to this equation. Which sort of is really not that useful. I tried this on 6 different calculators; 5 came up with 18, one with 12. The one that answered 12 is hereto-forward of no further use to me.
Oh, and I also joined the 99% that got the drip-bucket puzzle wrong, so I know my limitations.
Oh, and I also joined the 99% that got the drip-bucket puzzle wrong, so I know my limitations.
Feb 22, 2019 07:57:00 #
pmorin wrote:
Looking at it from my point of view, I say 3 plus 3 is 6 times 3 is 18 minus 3 is 15 plus 3 is 18.
Seems that's the way I learned the rules.
Feb 22, 2019 08:11:30 #
Feb 22, 2019 08:30:07 #
Feb 22, 2019 09:05:18 #
Feb 22, 2019 09:11:02 #
chippy65 wrote:
Me.........I'm simple...........I see -3 with +3........they cancel one another out ?
You’re right.
So we’re left with 3x3 + 3= 12
Feb 22, 2019 09:19:33 #
cdayton wrote:
Best answer but what’s the question?
42 is the "Answer to the Ultimate Question of Life , the Universe, and Everything"
Feb 22, 2019 09:40:03 #
Obviously a lot of people did not learn the rules of arithmetic regarding prioritization of functions in elementary school. Apply the rules of arithmetic and the answer is 12. Brackets are supplied by the rules of functional prioritization.
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