SOLUTION: What is the difference between the greatest and the least three digit numbers having the sum of their digits equal to 7?

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Question 1069450: What is the difference between the greatest and the least three digit numbers having the sum of their digits equal to 7?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Assuming 007 is allowed as a three digit number,
D=700-007=693
If it's not allowed,
D=700-106=594