So that's it? Circles..
Well, all I can say is now I understand why is that for kindergarden kids.. They don't know numbers, but we do.. so, we look from a total different angle.. When I see some equation, I don't count the circles or something because I know what numbers mean, so I look them as numbers.. (I believe every adult does that, or everyone who knows maths)
I wonder whether I could have succeed if they have given me that test in that ages.. hehe