This equation looks simple enough, right? Right?
Odds are that you got one of two answers: you either belong to the huge swathe of internet users who got 1 or you’re one of the people whose answer is 16. The internet is raging with amateur and professional mathematicians debating what the real answer is. There may have been some arguments over who’s right. And some shouting. Maybe even some shoving.
Some internet users used calculators to show everyone that the answer was 16. Others referred to their ‘maths degrees’ as an appeal of authority to demonstrate that the answer was 1. Others still took this equation business a bit more seriously than you would expect, and suggested that both answers were correct… depending on what rules you use to figure out the answer.
People couldn’t agree whether the answer to the equation was 1 or 16
The reason why there’s a lack of consensus regarding this equation is a fairly simple one. Different people are using different rules about what order everything should be calculated in. Whether, after adding 2 and 2 together in the brackets, you should divide 8 by 2 first or multiply what’s in the brackets by 2, instead. This sounds like a basic disagreement, but people got very heated over this.
Robert Glenn Howard, a social psychologist at the University of Wisconsin–Madison, told Slate that such equations are the same as riddles and games, and people get heated over such things because Facebook and other forums are a place for discussion: “People are already primed to engage in pretty intense deliberations, and that can bleed over into the way they play games.”
“Humans have used riddles as a form of play since ancient times,” Howard explained. “And sometimes people can get competitive and wrapped up in it.”
Just in case you were wondering, the answer to the equation is 16. No, wait. Never mind. Yep. Definitely 16. Definitely.
Some internet users delved way too deep into the rabbit hole that is Mathematics
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It simple examle, in math there are much more undefined example like matrices, which one you use row-oriented or column-oriented matrix by subscription they looks indentical it can be ether row oriented or column oriented:
|2 4 3|
|6 7 8|
|9 8 2|
Same about ∙ it can be scalar multiplication or dot product in geometry.
Good math article always define operation subscription before writing formula.
(8÷2)(2+2)
... which it appears that some calculators are doing.
Work backwards to find out what the correct answer is:
8÷2(2+2)= ?
8= ? x 2(2+2)
You cannot bring over the 8÷2 because it is not bracketed.
and so 16 x 2(2+2) is obviously not 8.
The answer is 1.
8/2*(2+2) = 8/2*4 = 16
1 is the result of another question, not written in the story:
8/(2*(2+2)) = 8/(2*4) = 8/8 = 1
The second two brackets make the difference.
At first i was one of the result-is-1-idiots. While i read the story, i got my mathematical intelligence back.