Digit Sums

​
target digit sum
0
number of digits
2
3
4
2-digit numbers whose digits add up to 0:
{00}
Which numbers have digits that add up to a given number?
For example, consider all two-digit numbers and a target digit sum of 10. The solution is {19, 28, 37, 46, 55, 64, 73, 82, 91}.

Permanent Citation

Bhuvanesh Bhatt, Arnoud Buzing
​
​"Digit Sums"​
​http://demonstrations.wolfram.com/DigitSums/​
​Wolfram Demonstrations Project​
​Published: March 7, 2011