**Maggie's

margs14 commented 6 months ago

6:21 Add to

LEAVE JUSTIN BIEBER ALONE!

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7,762,536 views

margs14 said:

Avada Kedavra :D

• 3:19 Add to

  Re: Visual Multiplication and 48/2(9+3)

  A quick response to some mathy things going around.

  282,542 views

  margs14 said:

  @SirTeeGeeEss you just made my point! you don't need the rules because you have brackets. What about those times when the person who writes it doesn't like to use brackets because they know the rule? They're not wrong. Neither are you. You just follow different conventions. Again, neither is wron...

• 3:19 Add to

  Re: Visual Multiplication and 48/2(9+3)

  A quick response to some mathy things going around.

  282,542 views

  margs14 said:

  @SirTeeGeeEss The left to right rule exists, it is thaught here in Portugal, exactly to prevent situations like this one. As you point out, you can read Vi's problem as (48/2)(9+3) or 48/(2(9+3)), which are not ambiguous. The L/R rule, is useful for when one chooses not to use brackets, like in ...

• 3:19 Add to

  Re: Visual Multiplication and 48/2(9+3)

  A quick response to some mathy things going around.

  282,542 views

  margs14 said:

  @brainwagon I agree with you but these conventions are absolutely necessary. Without them, we wouldn't be able to do the same math around the world. It's thanks to notation conventions that I, in portugal, understand what every other mathematician does in any other country

• 3:19 Add to

  Re: Visual Multiplication and 48/2(9+3)

  A quick response to some mathy things going around.

  282,542 views

  margs14 said:

  @SirTeeGeeEss I know multiplication in commutative. That only means a x b = b x a, but that's not what we're talking about here. Multiplication does not commute with division. We're not discussing the order in which you do the multiplication, but "when" you do it. In this case it must be done aft...

• 3:19 Add to

  Re: Visual Multiplication and 48/2(9+3)

  A quick response to some mathy things going around.

  282,542 views

  margs14 said:

  I'm sorry, I'm a math student as well and I cannot agree with you. 48 : 2 (9+3) is not a badly formed sentence. All you need to know is that:

  - x and : are done in the order they appear

  - the same goes to + and -

  - things between ( ) are to be solved first.

  - we assume there's a x sign between a ...

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