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Math Help - Why are these decimal subtractions = minus numbers?

  1. #1
    Junior Member Subliminalmessage's Avatar
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    Why are these decimal subtractions = minus numbers?

    1.76 - 15.10

    1.28 - 7.43

    8.88 - 60.10

    Why do they = -numbers?


    Thanks!
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  2. #2
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    Re: Why are these decimal subtractions = minus numbers?

    Because you're subtracting a larger number from a smaller number. For example, 5-2 = 3, but 2-5 = -3.
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    Junior Member Subliminalmessage's Avatar
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    Re: Why are these decimal subtractions = minus numbers?

    Quote Originally Posted by richard1234 View Post
    Because you're subtracting a larger number from a smaller number. For example, 5-2 = 3, but 2-5 = -3.
    Thanks a million richard, does that rule count for all subtractions on any type of number and not just decimals?

    Also, the biggest number is always on top, right?
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    Re: Why are these decimal subtractions = minus numbers?

    Quote Originally Posted by Subliminalmessage View Post
    Thanks a million richard, does that rule count for all subtractions on any type of number and not just decimals?
    Doesn't matter if that number is decimal, fraction, integer, etc.

    Quote Originally Posted by Subliminalmessage View Post
    Also, the biggest number is always on top, right?
    No. However, if you want to subtract 24.65 - 56.19, you could perhaps write it as -(56.19 - 24.65) and carry out the subtraction.
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  5. #5
    Junior Member Subliminalmessage's Avatar
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    Re: Why are these decimal subtractions = minus numbers?

    Quote Originally Posted by richard1234 View Post
    Doesn't matter if that number is decimal, fraction, integer, etc.

    I see, thanks.



    No. However, if you want to subtract 24.65 - 56.19, you could perhaps write it as -(56.19 - 24.65) and carry out the subtraction.
    I don't understand though, why can't you just do

    56.19
    24.65

    Instead of doing it with the smallest number on top and having to have a - answer?



    What is the difference between


    4.56
    - 5.53 = -0.97


    5.67
    - 4.42 = 1.25

    I'm really confused, probably because I took a break from maths just then and I've came back with a puzzled mind. So why is one minis and one isnt? I know I just asked this but I don't see the difference between these two.
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    Re: Why are these decimal subtractions = minus numbers?

    Quote Originally Posted by Subliminalmessage View Post
    I don't understand though, why can't you just do

    56.19
    24.65

    Instead of doing it with the smallest number on top and having to have a - answer?



    What is the difference between


    4.56
    - 5.53 = -0.97


    5.67
    - 4.42 = 1.25

    I'm really confused, probably because I took a break from maths just then and I've came back with a puzzled mind. So why is one minis and one isnt? I know I just asked this but I don't see the difference between these two.
    The traditional way to do subtraction is to put the larger number (larger = larger absolute value) on top.
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