Math, asked by keshavgargritu6642, 1 year ago

Why sum of digits while adding always equal to sum of digits of the answer

Answers

Answered by ApekshaChoudary

The sum of the digits of a positive integer is its remainder when dividing by 9. Thus, if n is given and you add its digits, the result is the same as subtracting a certain multiple of 9 from n.

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