MATH PROBLEM : Find digits... (Solution)

You can find the problem at this URL...
https://teachyleaf.blogspot.com/2020/04/math-problem-find-digits.html

Addition of three 5s can make a 5 with carry 1...

Addition of three 8s and 1 can make a 5 with carry 2...

Addition of three 1s and 2 can make a 5...