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Here's a question. How do you calculate the square root of a number with
pencil and paper only?
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On 8/10/2015 7:35 PM, Leroy wrote:
> Here's a question. How do you calculate the square root of a number with
> pencil and paper only?
This is the way I was taught at school.
http://mathlesstraveled.com/2009/06/11/square-roots-with-pencil-and-paper-method-2/
--
Regards
Stephen
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Stephen wrote:
> On 8/10/2015 7:35 PM, Leroy wrote:
>> Here's a question. How do you calculate the square root of a number with
>> pencil and paper only?
>
> This is the way I was taught at school.
>
> http://mathlesstraveled.com/2009/06/11/square-roots-with-pencil-and-paper-method-2/
>
>
>
Yea! I was taught the same method, now that I saw it. I just never use
it so I lost IT.
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On 8/10/2015 10:58 PM, Leroy wrote:
> Stephen wrote:
>> On 8/10/2015 7:35 PM, Leroy wrote:
>>> Here's a question. How do you calculate the square root of a number with
>>> pencil and paper only?
>>
>> This is the way I was taught at school.
>>
>> http://mathlesstraveled.com/2009/06/11/square-roots-with-pencil-and-paper-method-2/
>>
>>
>>
>>
> Yea! I was taught the same method, now that I saw it. I just never use
> it so I lost IT.
Maybe I should have said. Ye Olde School ;-)
Lordy, it was a long time ago.
--
Regards
Stephen
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Stephen wrote:
> On 8/10/2015 10:58 PM, Leroy wrote:
>> Stephen wrote:
>>> On 8/10/2015 7:35 PM, Leroy wrote:
>>>> Here's a question. How do you calculate the square root of a number
>>>> with
>>>> pencil and paper only?
>>>
>>> This is the way I was taught at school.
>>>
>>>
http://mathlesstraveled.com/2009/06/11/square-roots-with-pencil-and-paper-method-2/
>>>
>>>
>>>
>>>
>>>
>> Yea! I was taught the same method, now that I saw it. I just never use
>> it so I lost IT.
>
> Maybe I should have said. Ye Olde School ;-)
> Lordy, it was a long time ago.
>
My school so old that they tore it down! If fact most all the schools I
attended in Missouri are tore down. They blamed it on the tornado, But
we know better :)
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On 8/11/2015 12:48 AM, Leroy wrote:
> Stephen wrote:
>> On 8/10/2015 10:58 PM, Leroy wrote:
>>> Stephen wrote:
>>>> On 8/10/2015 7:35 PM, Leroy wrote:
>>>>> Here's a question. How do you calculate the square root of a number
>>>>> with
>>>>> pencil and paper only?
>>>>
>>>> This is the way I was taught at school.
>>>>
>>>>
http://mathlesstraveled.com/2009/06/11/square-roots-with-pencil-and-paper-method-2/
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>> Yea! I was taught the same method, now that I saw it. I just never use
>>> it so I lost IT.
>>
>> Maybe I should have said. Ye Olde School ;-)
>> Lordy, it was a long time ago.
>>
> My school so old that they tore it down! If fact most all the schools I
> attended in Missouri are tore down. They blamed it on the tornado, But
> we know better :)
>
<Sings> We don't need no education ;-)
--
Regards
Stephen
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> Here's a question. How do you calculate the square root of a number with
> pencil and paper only?
If you asked me to do it I'd probably use some sort of guessing method
for each digit then move onto the next. Surprisingly you can normally
get to within one or two digits just by looking at the previous answers.
You better be good at multiplication by hand though :-)
eg Find sqrt(70)
(guess 8)
8^2=64
9^2=81
(guess 8.3)
8.3^2=68.89
8.4^2=70.56
(guess 8.36)
8.36^2=69.8896
8.37^2=70.0569
(guess 8.368)
etc.
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