Match the tiles. Put FF1 with FF1 et voila. Now, the thing I didn't get when I got my 3,000 score was that two FF1 tiles together make an FF2. Two FF2 tiles together make an FF3. And so on.
Each one makes the next game in the series when combined. It doesn't add like 1+1=2.
Uh yeah, that's exactly what I said In this case it just so happens that 1+1 does equal two.