I would identify the sample space. While you don't necessarily need to list every element, you should at least get the "gist" of it...
Here, the first digit is the spin of the (0-7); the second digit is the spin of the (0-9).
It was too tiresome to list them all, but I HAVE included everything we need to do this problem.
1. How many elements are in the sample space?
2. How many elements are in the event (sum < 6 or First = 3)?
Hint: Don't count the element "32" twice!
3. Divide your result from 2 by the result from 1. This is your probability.