Adding in your head

Discussion in 'Miscellaneous' started by Miss Chicken, Jul 3, 2019.

  1. auntiehill

    auntiehill The Blooness Premium Member

    Joined:
    Feb 7, 2006
    Location:
    auntiehill
    Me too. I think my SATs broke down something like "Top 2 % for English" and "bottom 30% for Math."
     
  2. HaventGotALife

    HaventGotALife Fleet Captain Fleet Captain

    Joined:
    Jul 6, 2011
    I learned to at least count change in a cash register. 45 cents is 54 back. 35 is 65 back. It's rote memorization, like multiplication. 100, minus the total change, and you have made a dollar.

    At $7.01 you give them 2 dollars and 99 cents from a ten. Anything added to 7 decreases the dollar amount one, then count back from 100. If someone has an 18.43 bill, and wants a five back, it's 19 dollars. So, give me 24 and I'll give you $5.57 back.

    That's math I do in my head. All day. I check my register, the register checks me.
     
  3. Amaris

    Amaris Fleet Admiral Admiral

    Joined:
    Dec 25, 2002
    48
    Beach boys
    27
    111
    91
    48
    (musical notes)
    58
    68
    78
    75
     
  4. Delta Vega

    Delta Vega Commodore Commodore

    Joined:
    Nov 17, 2011
    Location:
    The Great Barrier
    I'm confused :)
     
  5. Amaris

    Amaris Fleet Admiral Admiral

    Joined:
    Dec 25, 2002
    That’s how I add in my head.