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#1 2007-09-16 03:47:05

cole
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how to do squared and cubed??

:/can someome explain how you do squared and how to cube??

#2 2007-09-16 04:03:48

bossk171
Member
Registered: 2007-07-16
Posts: 305

Re: how to do squared and cubed??

I hope this is what you're asking:

In order to square a number, let's call our number "n" all you do is multiply it by itself.

SO:

Thus two squared is four and three squared is nine.

To cube a number all you do is multiply it by itself three times:

So two cubed is eight and three cubed is twenty-seven.

Last edited by bossk171 (2007-09-16 04:04:16)


There are 10 types of people in the world, those who understand binary, those who don't, and those who can use induction.

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#3 2007-09-16 06:37:00

Daniel123
Member
Registered: 2007-05-23
Posts: 663

Re: how to do squared and cubed??

You can think of it this way:

If you have a horizontal line of length 8, and then add a vertical line also of length 8, you have a 'square'. To find the area of the square, you multiply the two lines together. This is effectively what you are doing when you 'square' a number.. you turn it into a 'square'.

If you then add another line of length 8 in the third dimension, you have a 'cube' that is 8 by 8 by 8, which is 8 'cubed'.

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#4 2007-09-16 11:59:59

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,588

Re: how to do squared and cubed??

Technically, to square, you multiply a number by itself once.
So to cube, you multiply a number by itself twice, not thrice,
because you started with one of them.
But this is just silly English getting in the way.
So 3 times 3  times 3  is the same as  3 X 3 X 3, which equals 27.
So 3 cubed is 27.
Now 10 cubed is not 100, that's 10 times 10, so that's 10 squared.
100 times 10 is 1000, so that's 10 cubed.
Now 100 cubed is a million.
Remember that 100 squared is ten-thousand.  I love that one.
Also don't forget that 5 squared is twenty-five.
And the square root of 25 is 5, that is going backwards with the ROOT.
The square root of 1 is still 1 because 1 times 1 is 1.


igloo myrtilles fourmis

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#5 2007-09-16 15:38:26

bossk171
Member
Registered: 2007-07-16
Posts: 305

Re: how to do squared and cubed??

John E. Franklin wrote:

Technically, to square, you multiply a number by itself once.
So to cube, you multiply a number by itself twice, not thrice,

I noticed that when I wrote it, but I went ahead and wrote it wrong anyways because I thought associating the square with the twice and the cube with the thrice was a godd way to conceptialize it.

I hope I didn't just make things worse.


There are 10 types of people in the world, those who understand binary, those who don't, and those who can use induction.

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#6 2007-09-16 16:20:35

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,588

Re: how to do squared and cubed??

You never know what the asker is going to think when they read our answers, but the more responses they get the better I guess, since everyone learns differently.
That's why I answer things that other people have already answered, just in hopes that someone will catch on from different ways of saying things.


igloo myrtilles fourmis

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#7 2007-09-17 03:45:25

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

Re: how to do squared and cubed??

cole wrote:

:/can someome explain how you do squared and how to cube??

What grade are you in?

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