Another way to look at math

Why u nevedr taught me this way

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8 comments to Another way to look at math

  • G-Bull

    Wow, you mean there’s really people who didn’t figure out this pattern on their own in the third grade?
    Just wow.

  • Sally

    There’s also the fingers trick… put down the finger of the number (1-10) that you’re multiplying by and the remaining numbers make up the answer.

    Example (In case your teacher never taught you this either):

    4 x 9

    Look at your palms, face up
    Put down your left ring finger
    3 finger left on the left side, 6 on the right
    The answer = 36

  • Davin Peterson

    Another thing unique about 9:
    18 1+8=9
    27 2+7=9
    36 3+6=9
    45 4+5=9
    54 5+4=9
    63 6+3=9
    72 7+2=9
    81 8+1=9
    90 9+0=9

    • TekDragon

      yup and it works with any number multiplied by 9. You just keep adding until you get back to 9. For example: 179 x 9 = 1611 -> 1+6+1+1 = 9, 2397 x 9 = 21573 -> 2+1+5+7+3 = 18 -> 1+8=9.

      I knew someone who said that the number 9 is the only perfect number because it is the only number you can do this with.

  • J-Bird

    Now, let’s do it with 8’s

  • that1chick

    that was the only way I got through the 9s in elementary school!

  • dabba

    My teachers never showed us any of these. I had to learn my times tables the old fashioned way.

  • tony m

    What,fingers and toes?

 
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