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Scorpion Power  Scorpion Power 
04292011 01:26 AM 7 years ago  Post 1 
Dood rrProfessor Wescanson  If you've been on facebook in the last 24 hours, you might have seen a poll appear in your news feed.The question is a simple(?) math problem.6÷2(1+2)=You have two choices. 1 or 9.I'm not looking for the answer, because I know its 9, I just want to see what the people of Runryder think. Post your answer, either 1 or 9 in the form of a reply to this topic. ▲  

04292011 01:31 AM 7 years ago  Post 2 
PJRono rrKey Veteran Minnesota, Ya!  The flippin' answer is 9!If you skip me I can't play!  

04292011 02:02 AM 7 years ago  Post 3 
ppridday rrKey Veteran Detroit Lakes MN  It's 9Paul"There's someone in my head, but it's not me..."  

04292011 02:32 AM 7 years ago  Post 4 
Raptorz499 rrKey Veteran NJ  It's 1  

04292011 02:43 AM 7 years ago  Post 5 
702nitro rrKey Veteran Las Vegas, NV  6÷2(1+2)=> 6÷2(3)> 3(3) = 9OR6÷2(1+2)=> 6 ÷ 2 x 3 = > 3 x 3 = 9Division and multiplication have the same precendence, therefore it is left associative.  

04292011 02:44 AM 7 years ago  Post 6 
eggmcmuffinplz rrElite Veteran Los Angeles, CA  its 1view it as 6 ALL OVER 2(2+1)so6____ 2(2+1)therefore 3x2=66 ___ 6=1 viola  

04292011 03:24 AM 7 years ago  Post 7 
EvoFlight50 rrApprentice Southbury, CT  If it was 6 all over 2(2+1) it would read6/(2(2+1))  

04292011 03:27 AM 7 years ago  Post 8 
Ronald Thomas rrMaster Gainesville, Fl, USA  So:6/2(1+2)
 

04292011 03:31 AM 7 years ago  Post 9 
EvoFlight50 rrApprentice Southbury, CT  It's multiplication and division, addition and subtraction. They're on equal levels.  

04292011 03:50 AM 7 years ago  Post 10 
Dood rrProfessor Wescanson  I messaged a friend on Facebook who thought the answer was 1.
This is copy & paste of the explanation I sent him on Facebook.  

04292011 03:50 AM 7 years ago  Post 11 
jcrack_corn rrVeteran End of Time  lol you guys are funny.the answer is 1. sorry if you dont know why.  

04292011 04:01 AM 7 years ago  Post 12 
dkshema rrMaster Cedar Rapids, IA  6 ÷ 2(1+2) =6 ÷ 2 X (1 + 2) =6 ÷ 2 X 3 =3 X 3 =9Simply because there isn't a space between the 2 and the (1 + 2) components of the equation doesn't mean you take care of the (1 + 2) first, then multiply the result by 2. It just means someone got lazy and left the multiplication operator out of the equation. The person who wrote the quiz also assumes that if you don't SEE the operator (in this case the missing "X" for multiply), that the reader will mentally insert the missing operand into the equation.Write it out properly as shown above, turn the crank. Your Motherly Dear Aunt Sally would be proud of you.  

04292011 04:07 AM 7 years ago  Post 13 
jcrack_corn rrVeteran End of Time  there is no possible way it will fly. because the treadmill is pulling backwards at an equal speed to the forward motion = no lift  

04292011 04:14 AM 7 years ago  Post 14 
dkshema rrMaster Cedar Rapids, IA  Found this bit of wisdom on a math Q & A site:Dropping the 'X' and cramming two variables together is not the same as putting parentheses around them, even though it's somewhat natural for a human brain to interpret it that way in some contexts.   

04292011 04:18 AM 7 years ago  Post 15 
dkshema rrMaster Cedar Rapids, IA  Addition and Subtraction are on equal levels.Multiplication and division are NOT on the same level as addition and subtraction.In this case the addition of parentheses forces you to do the addition first. Once that happens, it's left to right as you encounter the operator. The "X" operator is implied.It's multiplication and division, addition and subtraction. They're on equal levels.  

04292011 04:25 AM 7 years ago  Post 16 
classic rrElite Veteran All over the place!  The real answer is ...7
 

04292011 01:03 PM 7 years ago  Post 17 
helibill rrApprentice London, Ontario, Canada  It's worrisome that some of you are getting an answer other than 9...  

04292011 02:20 PM 7 years ago  Post 18 
koppter rrApprentice Virginia  the problem with PEMDAS is that many students interpret it as meaning that multiplication has precedence over division, and addition takes precedence over subtraction. as has been stated, when both operations appear in an equation or expression, you simply move left to right. Parentheses come first, so what you are left with is6 divided by 2 times 3. which is 9i'll throw this at my students this morning...by the way, at least in california, this is 4th grade math.  

04292011 02:39 PM 7 years ago  Post 19 
Steff Giguere rrProfessor StEustache, Quebec, Canada  See how simple it is?Team Synergy, Rail blades, Team Scorpion, VTeam  

04292011 02:56 PM 7 years ago  Post 20 
Dood rrProfessor Wescanson 
i'll throw this at my students this morning...by the way, at least in california, this is 4th grade math.  

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