Hello,,,
My name is Gaurav Misra, and Iam from New Delhi, India,,,if someone can read this,,,can someone tell me how I can contact the Wikipedia team in India,,,as there is so much more to my technique of "Subtraction without Borrowing",,,which I can only do if Iam helped how to use certain mathematical tools on the talk page, which Iam unable to perform & proceed further on a theory which follows the principle technique I have mentioned in my Article posted on 23/12/10, as mentioned below. For e.g. I can't figure out how do I put a "power-to" an Integer if I have to,,, i.e. - If 2 "to-the-power-of" 2 is = 4, then how do I put the "power-to" digit next to an Integer,,,please someone help,,,so that I can proceed further with my theory/ project and contribute further to Wikipedia.
I had submitted/ posted my discovery to Wikipedia section "Subtraction without Borrowing" on the 23rd December, 2010, as follows from my IP Number 122.162.135.24, and i wish to discuss on the above matter with someone in Wikipedia on my following discovery mentioned below, as is mentioned on your page for "Subtraction without Borrowing" :
EXCERT FROM THE CURRENT PAGE OF "SUBTRACTION WITHOUT BORROWING" :
Iam, Gaurav Misra from New Delhi India, and I have discovered another way of "Subtraction without Borrowing", which is different from the method mentioned above, and would like to share it with everyone on Wikipedia, so here goes,,,
SUBTRACTION WITHOUT BORROWING – BY ADDITION METHOD
PROBLEM: TO SUBTRACT A SMALLER NUMBER (Subtrahend) FROM A LARGER NUMBER (Minuend)
RULES:
1. Take a Large number, for e.g. 5674561 (Minuend) and take another Smaller Number, for e.g. 79562 (Subtrahend), see below:
5674561 – 79562 which if we use a calculator will give us = 5594999 as the answer.
2. Now, to do this by my “Addition” method, mentally convert & write all digits of the Subtrahend, so that the digits written add upto “9” on all corresponding digits of the Subtrahend, exactly in the same place without changing the placement of the value of each corresponding digit, i.e., the Unit value under Unit value, the Tens under Tens, Hundreds under Hundreds,,,and so on as the case maybe, as mentioned below:
7 9 5 6 2 (Subtrahend)
+ 2 0 4 3 7 (We call this the ‘New Number’)
So that all equal to = 9 9 9 9 9
3. Now we take the “New Number” from above and place it exactly under the Large Minuend, like below:
5 '6' 7 4 5 6 1 (Minuend)
2 0 4 3 '7' (“New Number” from the above)
4. Now we simply add (+) “1” to the last digit (Units digit) of the "New Number", which is '7' & subtract (-) “1” from the “next” corresponding digit of the Minuend, which is larger in value in relation to the highest value placement of the “New Number”, which is '6', so that they now appear as below:
5 (6 – 1 = 5) 7 4 5 6 1
2 0 4 3 (7 +1 = 8)
OR, as below:
5 5 7 4 5 6 1
2 0 4 3 8
5. Now by simply “ADDING” the above numbers, we shall always get the correct result, to the original numbers, if Minuend & Subtrahend were subtracted by the conventional method of borrowing, which we learnt in school,,,Don’t believe me, then see it for yourself as below:
5 5 7 4 5 6 1
ADD (+) 2 0 4 3 8
You Get = 5 5 9 4 9 9 9 --- PRESTO,,,which is the ANSWER
Try doing the above on any numbers, Big or Small, even if they are in Decimals and you shall always get the correct result, as long as you follow all the RULES mentioned above.
Another ‘Tip’ is to convert the last ‘Unit’ placed digit of the “New Number” directly to “10” instead of “9”, then you don’t need to add “1” like I did above,,,TRY IT GUYS !!!!!!,,,going forward ‘Subtraction’ will have a whole new “POSITIVE” feel to our psyche,,,instead of the “negative” feel we get when we ‘Minus’ something.
Also, where the number of digits are the same on both Minuend & Subtrahend, the (-) "1" of Rule 4 (as mentioned above)on the Minuend will automatically be on the very first digit of the Minuend from left, i.e. the Highest value in terms of placement.
NOTE: In case the Subtrahend is larger than the Minuend, the two numbers will interchange themselves in their roles, i.e. the Minuend becomes Subtrahend & vice-versa, and a (-) negative sign will appear next to the answer, as is the case in any method of subtraction.
Gauravmisra del (talk) 20:08, 25 December 2010 (UTC)