My OperaThis problem can be solved by pre-school children in 5-10 minutes, by programer – in 1 hour, by people with higher education …
Thursday, March 29, 2012 2:18:20 AM
Well, check yourself.
The answer has to do with how many circles are in each number. So the number 8 has two circles in its shape so it counts as two. And 0 is one big circle, so it counts as 1.
So 2581=2.
Unregistered user # Thursday, April 12, 2012 9:34:22 AM