Perception

Delilah:  Mom, how old is your grandpa?
Mom:  He's old...more than 100!
Delilah:  100 nickels.
Mom:  What?
Delilah:  100 and nickels.
Mom:  I don't think that's right.  Nickels.
Delilah (in frustrated tone):  Like 100 and NICKELS?

I pause.  Think....think...think. 

Recent conversation comes to my mind and hallelujah...I've got it!

Mom:  Oh...like you're 5 and 3/4 (3 quarters)?
Delilah:  Yeah, is he 100 and quarters?