• @sushibowl@feddit.nl
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    771 year ago

    Intuitively speaking, how many times does half of a thing fit into a quarter of a thing? The answer is, exactly one half time.

    • p3e7
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      51 year ago

      I think, it is the real world logic that makes it hard to grasp. If you divide something with something small it becomes bigger. Mathematically it’s easy and makes sense, but it it’s somehow not intuitive. Especially for young me :)

  • @bstix@feddit.dk
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    31 year ago

    Multiplication of x times 6:

    x * 6 = 1/2 x * 10 + x

    This can sometimes be a shortcut for numbers that are easier to divide by 2 than to multiply by 6.

    Take half as tens and add the number.

    6 * 6 = 30 + 6 = 36

    8 * 6 = 40 + 8 = 48

    150 * 6 = 750 + 150 = 900

    320 = 1600 + 320 = 1920

    Etc.

    Sleep well.

  • @Zerush@lemmy.ml
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    21 year ago

    This don’t avoid to sleep not even for 1/2 second. But pick any number. If that number is even, divide it by 2. If it’s odd, multiply it by 3 and add 1. Now repeat the process with your new number. If you keep going, you’ll eventually end up at 1.

    • @weker01@feddit.de
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      31 year ago

      Please use parenthesis to avoid ambiguity. N/1/2 could also mean N/2…

      (Also I think you made a typo “2N/2” should be “2N/1”)

  • @Etterra@lemmy.world
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    01 year ago

    You have one apple. You divide it into quarters, so that you have 0.25 of an apple. Now divide it in half. So yes well technically you do have one half of 0.25 (and 0.5 is the answer that a calculator will return) what you actually have is 1/8 of an apple (0.125).

    This is what pisses me off about Matt half the time. You end up with something that in the abstract makes sense because it’s just numbers, but then if you try to make it make sense in real life it’s stupid.