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en.wikipedia.org/wiki/Digit_sum

In mathematics, the

www.programmingsimplified.com/c/program/c-program-add-number-digits

C program to add

www.sjsu.edu/faculty/watkins/Digitsum.htm

The

www.physicsforums.com/threads/formula-for-sum-of-digits-of-a-number.607385/

May 19, 2012

chandoo.org/wp/2011/03/18/calculating-sum-of-digits-in-a-number/

Mar 18, 2011

mathcentral.uregina.ca/qq/database/qq.02.06/jo1.html

The sequence of

www.sjsu.edu/faculty/watkins/Digitsum0.htm

It is well known that the

mathworld.wolfram.com/DigitSum.html

www.accountingcoach.com/blog/sum-of-the-years-digits-depreciation

The

Popular Q&A

Q:
Find the sum of the digit of a number?

A:
for (sum =0; n!=0;) sum +=n%10, n /= 10;
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Source:
wiki.answers.com

Q:
Find the sum of the digits of this integer.?

A:
10^(101) - 1. 10^(101) = a 1 followed by101 zeros. ∴10^(101) - 1 = a 101 digit interger made up of all 9's. 101(9) = 909.
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Source:
answers.yahoo.com

Q:
How to Find Sums of Digits .

A:
1. Take a number for which the digit sum is to be determined. Let's suppose that the number is 666. 2. Add the digits of the number. In this case, adding 6 + 6 ...
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Source:
www.ehow.com

Q:
How is finding the sum of 4 digit numbers like finding the sum of...

A:
To add numbers, start in the ones column and carry over any 'tens' to the tens column. That principle applies for adding 3 digit numbers as well as 4 digit
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Source:
www.chacha.com