I wish I knew. DS is exactly like this. Everything is number to him. Saying it's 60 degrees is not good enough....it's 62 degrees. Or it's not 5pm, it's 5:03pm. He will put a number to things that don't have anything to do with numbers (to most people anyway smile ) If I ask him if he cleaned his room, he will tell me it is 72% done. LOL! I catch him all the time counting things. I guess that's just how he sees the world.