- Joined
- Aug 28, 2006
- Messages
- 71
- Reaction score
- 0
I read in my PTC exam review book that to verify the DEA# you add the sum of the odd and even numbers together, multiply that by two and then check to make sure the last digit of that number is the same as the seventh digit. It doesn't actually say specifically to not add the 7th number but this is implied in the example.
Wouldn't it be simpler and more correct to just say "Find the sum of the first six digits, double it and verify that the last digit of this number is the same as the last digit of the DEA#?
Wouldn't it be simpler and more correct to just say "Find the sum of the first six digits, double it and verify that the last digit of this number is the same as the last digit of the DEA#?