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To save you the watch... 8 / 2 (2 + 2) = 8 / 2 (4) = 4 (4) = 16 It's easy to accidentally arrive at a result of 1 by mistake by doing 2 * 4 "b

• simonblack 7y ago
  BODMAS. is BRACKETS then OF then DIVISION then MULTIPLICATION Then ADDITION then SUBTRACTION 8 / 2(2 + 2) 8 / 2(4) 8 / 8 = 1 > Surprisingly I've seen an older Casio scientific calculator given an incorrect answer of 1 LOL. The brackets bind tighter than the division sign. It's a trick question. What the 16 proponents are seeing is (8/2) x (2+2) (4) x (4) (16) What the brackets are doing though is (8) / (2 x (2 +2)) (8) / (2 x 4) (8) / (8) (1)
  • tedmiston 7y ago
    But the extra set of parentheses added here in your reply is not part of the original equation: (8) / (2 x (2 +2)) ^ ^ I don't follow why you don't do the multiplication left to right after the expression inside the parentheses has been evaluated. Once the parentheses (PEMDAS) precedence has been applied to result in 8 / 2 * 4, then it should just be standard multiplication and division left to right, right? https://www.google.com/search?hl=en&q=%3D%208%20%2F%202%20(2%20%2B%202) https://www.google.com/search?hl=en&q=%3D%208%20%2F%202%20(2...
    • simonblack 7y ago
      The extra set of brackets is an attempt to show that the '2' in front of the bracket is shorthand for '2 x' i.e 2(...) = (2x(...)) but that '2' is part of the whole brackets expression and should be evaluated as such. As I mentioned before, this is really a trick question, and meant to be deliberately ambiguous.