• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

How is it done?

Well, there are only so many results you can have by subtracting one number by another. It'll probably just look through a database of numbers and look for one that contains two of the numbers you've given it. The third number in that number in the database would be the one you circled?
 
The difference will always be divisible by 9. And any number divisible by 9 has digits that sum up to 9.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top