There are two basic approaches we can use:

1. Pick a number and see which displays could match it, or
2. Pick a display and see which numbers it could match.

As an example of the first approach, let's choose the zero. There are only four displays that could be the zero (the third and fourth display on the each row). As an example of the second approach, the last display could only be a 6 or an 8. Apply either approach to all the displays and then begin a process of elimination.