Math magic!

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  1. Randy Godwin profile image92
    Randy Godwinposted 8 years ago

    Make up a four or five digit number ex.  12345

    Add the total of the digits  ex.     12345 = 15


    subtract the total from the original sum  ex.  12345 - 15 = 12330


    Circle any one of the numbers  ex  12(3)30




    Give me ONLY the numbers you did not circle and I will tell you which number you circled.

  2. Ohma profile image73
    Ohmaposted 8 years ago

    6804

    1. Randy Godwin profile image92
      Randy Godwinposted 8 years agoin reply to this

      The number you circled is 0 or 9!

      Edited!

      1. Ohma profile image73
        Ohmaposted 8 years agoin reply to this

        9 is correct

        1. Randy Godwin profile image92
          Randy Godwinposted 8 years agoin reply to this

          You gave me the hardest choice, Ohma!

          1. Ohma profile image73
            Ohmaposted 8 years agoin reply to this

            Cant make things to easy you will get soft and complacent.

            1. Randy Godwin profile image92
              Randy Godwinposted 8 years agoin reply to this

              Well, perhaps complacent, anyway!

  3. blondepoet profile image66
    blondepoetposted 8 years ago

    Gidday Randy I am ready with mine for you to give it a bash.

    2336

    1. Randy Godwin profile image92
      Randy Godwinposted 8 years agoin reply to this

      Hullo BP!  Your answer would be 4!  No kiddin'!

      1. blondepoet profile image66
        blondepoetposted 8 years agoin reply to this

        Fair dinkum you are right Randy. I am buggered to how you did that?
        4 it is. Woo hoo!!!!!!!!
        You are the man. smile

        1. Randy Godwin profile image92
          Randy Godwinposted 8 years agoin reply to this

          Hold that thought BP!  LOL!

          1. blondepoet profile image66
            blondepoetposted 8 years agoin reply to this

            I will Randy you can bet your booty. smile

            1. Randy Godwin profile image92
              Randy Godwinposted 8 years agoin reply to this

              Consider my booty wagered BP!  LOL!

  4. wilderness profile image96
    wildernessposted 8 years ago

    Neat, Randy.  I'll have to remember that one.  9 seems key.

  5. mrpopo profile image72
    mrpopoposted 8 years ago

    3224

    I'm very curious on seeing how you do this trick smile

    1. Randy Godwin profile image92
      Randy Godwinposted 8 years agoin reply to this

      Lucky seven, of course, mrpopo!

      1. mrpopo profile image72
        mrpopoposted 8 years agoin reply to this

        This really is magic! How are you doing this??

        1. blondepoet profile image66
          blondepoetposted 8 years agoin reply to this

          I reckon he has magic powers lurking somewhere in there. I wonder if I pop him in a bottle he can be my magic genie. smile

          1. Randy Godwin profile image92
            Randy Godwinposted 8 years agoin reply to this

            You never know until I wave my wand!

            1. blondepoet profile image66
              blondepoetposted 8 years agoin reply to this

              If I pop you in an empty Handy Andy All Cleaner bottle you can be my Randy Handy Andy and give me heaps candy. smile

              1. Randy Godwin profile image92
                Randy Godwinposted 8 years agoin reply to this

                Okay!  Sounds dandy!

        2. Randy Godwin profile image92
          Randy Godwinposted 8 years agoin reply to this

          No magic, just math!  I will tell you how it works tomorrow in case someone else wishes to try it!  I've won a few beers in my lifetime doing this trick!

          1. wilderness profile image96
            wildernessposted 8 years agoin reply to this

            Or unless I sneak in and tell 'em!

            1. Randy Godwin profile image92
              Randy Godwinposted 8 years agoin reply to this

              Of course!  There is always that!  LOL!

  6. angela_michelle profile image98
    angela_michelleposted 8 years ago

    So what's the secret?

    1. Randy Godwin profile image92
      Randy Godwinposted 8 years agoin reply to this

      You have to be psycho...er...psychic!

  7. mrpopo profile image72
    mrpopoposted 8 years ago

    I don't want to hurt my head figuring this out tongue what's the trick behind it?

  8. Randy Godwin profile image92
    Randy Godwinposted 8 years ago

    Okay, here is the answer to how this trick works.

    This trick is based on the number 9.   For example : if you give me the numbers 123, I would add them up and get 6.  I subtract 6 from 9 and get 3.  The number you circled would be 3.

    If the numbers totaled over 9, say 12, them you would subtract the total from 18 and get 6.  And so on with multiples of 9 such as 27, 36, etc.

    The only time there is not a certain answer is when the given numbers total 9, 18, 27, etc.  Then the answer is either 0 or 9.



    There are other tricks using nine as a basis.  It's an interesting numeral!  Enjoy the magic!

    1. wilderness profile image96
      wildernessposted 8 years agoin reply to this

      I got it right!  YooHoo!

      1. Randy Godwin profile image92
        Randy Godwinposted 8 years agoin reply to this

        Indeed you did, Wilderness!  Thanks for not spoiling it!

        1. wilderness profile image96
          wildernessposted 8 years agoin reply to this

          Aw, that would've ruined all the fun!

          Have you ever tried to figure out just WHY it works that way?

          1. Randy Godwin profile image92
            Randy Godwinposted 8 years agoin reply to this

            Yes, I actually discovered the trick in an encyclopedia years ago and it was explained fully, but I haven't thought about why it works for a long time.  There are some other neat tricks using the number nine but this is my favorite.

            As I said earlier, it has earned me a few beers on occasion!

  9. mrpopo profile image72
    mrpopoposted 8 years ago

    Lol, neat trick!

 
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