Looks like you need 5 of the big ones and 2 of the small ones.
I don’t have the small ones, but I have enough of the big ones to cover. I’m assuming that’s an acceptable modification. I’m also hoping that the kit comes with the correct number of plates. The web site says it only comes with 4 of the big ones.
This is the same box that the Game-Specific Field Tiles & Orange Loader Caps come in, if that helps too.
They are captured inside of one of the cardboard inserts inside of the box to prevent them from sliding around in transit and damaging the other parts in the box.
I found them. I had a helper that put the one square one with the other stack of squares that I had, and the two little ones were left in the box. I picked it up and shook the box but it felt empty. I guess I just expected them to weigh more.
Thank you everyone for your responses. They would be in the garbage otherwise as the box was in the hallway.