Posted July 31, 2019 16 (8/2)(2+2) the additional * in the equation as presented in the OP helps parse it. 0 Share this post Link to post Share on other sites
Posted July 31, 2019 8 minutes ago, JoDoe27 said: 16 (8/2)(2+2) the additional * in the equation as presented in the OP helps parse it. Yep 0 Share this post Link to post Share on other sites
Posted July 31, 2019 This was the original equation. I just didn't have a division sign on my keyboard. Apparently the method by which you learned math determines the resultant. 8 ÷ 2x(2+2) = ? 0 Share this post Link to post Share on other sites
Posted July 31, 2019 This very question was on the internet the other day. Roughly 64% of people answered correctly 1. The other 36% answered correctly 16. The correct answer varies morning which math method you were taught. 0 Share this post Link to post Share on other sites
Posted July 31, 2019 16 if you're over 40 1 for the under 40 crowd 0 Share this post Link to post Share on other sites
Posted August 1, 2019 Doesn’t matter when you learned mathematics, you should have been taught the order of operations in the form of PEMDAS. Parentheses first, then any exponents, then multiplication and division as a group going from left to right and finally addition and subtraction as a group going from left to right. So 8➗2x(2+2) would then become 8➗2x(4) next would be the division and multiplication going left to right so you do the division first getting 4 and now the equation is 4x(4) and finally that multiplication results in the answer of 16 Sorry for being so long winded but it’s the math teacher in me! 4 Share this post Link to post Share on other sites
Posted August 1, 2019 18 minutes ago, Denvernative said: Doesn’t matter when you learned mathematics, you should have been taught the order of operations in the form of PEMDAS. Parentheses first, then any exponents, then multiplication and division as a group going from left to right and finally addition and subtraction as a group going from left to right. So 8➗2x(2+2) would then become 8➗2x(4) next would be the division and multiplication going left to right so you do the division first getting 4 and now the equation is 4x(4) and finally that multiplication results in the answer of 16 Sorry for being so long winded but it’s the math teacher in me! Please Excuse My Dear Aunt Sally I was also taught to add parenthesis to help with grouping and ensure the proper order of operations. Otherwise it turned into the Wild West of problem solving. 0 Share this post Link to post Share on other sites
Posted August 1, 2019 I was with you {parens, then L to R} until I found this. ”However, in some of the academic literature, multiplication denoted by juxtaposition (also known as implied multiplication) is interpreted as having higher precedence than division, so that 1 ÷ 2x equals 1 ÷ (2x), not (1 ÷ 2)x.” in WIKI: Order of Operations So the original equation: 8 ÷ 2x(2+2) = 16 But remove the ‘x’ operator for an implied multiplication and it becomes: 8 ÷ 2(2+2) = 1 0 Share this post Link to post Share on other sites
Posted August 1, 2019 Well, we’re not the only ones scratching our heads. https://www.foxnews.com/tech/viral-math-problem-baffles-many-internet 0 Share this post Link to post Share on other sites
Posted August 1, 2019 1 hour ago, Bit Banger said: I was with you {parens, then L to R} until I found this. ”However, in some of the academic literature, multiplication denoted by juxtaposition (also known as implied multiplication) is interpreted as having higher precedence than division, so that 1 ÷ 2x equals 1 ÷ (2x), not (1 ÷ 2)x.” in WIKI: Order of Operations So the original equation: 8 ÷ 2x(2+2) = 16 But remove the ‘x’ operator for an implied multiplication and it becomes: 8 ÷ 2(2+2) = 1 And that is how I was taught going all the way from grade school through college. To me the answer is1 and will always be 1. 0 Share this post Link to post Share on other sites
Posted August 1, 2019 1 hour ago, Bit Banger said: Well, we’re not the only ones scratching our heads. https://www.foxnews.com/tech/viral-math-problem-baffles-many-internet It’s like pointed out, the notation is what’s causing the problem. With the way the OP wrote it the answer is 16. All about the notation. 0 Share this post Link to post Share on other sites
Posted August 5, 2019 On 7/31/2019 at 5:01 PM, ilovewomen said: This very question was on the internet the other day. Roughly 64% of people answered correctly 1. The other 36% answered correctly 16. The correct answer varies morning which math method you were taught. there is "order of operation" though, so you don't just get to pick what steps you follow to solve. 0 Share this post Link to post Share on other sites
Posted August 5, 2019 Can we just get back to regular programming? Ask me about penis’ , that’s something I know about. I did not fair well in Algebra.😐 7 Share this post Link to post Share on other sites
Posted August 5, 2019 Just written up in the NYTimes: https://www.nytimes.com/2019/08/05/science/math-equation-pemdas-bodmas.html?action=click&module=Latest&pgtype=Homepage As he summarizes, adherence to elementary math PEMDAS (that Denvernative first mentions), the answer is 16. But from an algebraic analysis, which I would take, the answer is 1. 0 Share this post Link to post Share on other sites
Posted August 5, 2019 On 7/31/2019 at 5:16 PM, Turtle138 said: 16 if you're over 40 1 for the under 40 crowd Nope I'm 84 and the correct answer is 1! 0 Share this post Link to post Share on other sites
Posted August 5, 2019 16 hours ago, Audrey Astor said: Can we just get back to regular programming? Ask me about penis’ , that’s something I know about. I did not fair well in Algebra.😐 I'm with you Audrey. 1 Share this post Link to post Share on other sites
Posted August 10, 2019 Can we talk about something we need to know about .. Breast - - Kitties - Penis 1 Share this post Link to post Share on other sites
