3rd Grade Math, Little Johnny is on point! So a teacher is teaching a 3rd grade math class and asks the class, ""If three birds are sitting on a wire, and a hunter shoots one, how many are left?"". Little Johnny raises his hand and the teach says ""yes little Johnny"". Little Johnny answers with ""zero"". The teacher says, ""No little Johnny I'll ask again, If three birds are sitting on a wire, and a hunter shoots one, how many are left"". Little Johnny thinks for a couple seconds and says, ""ye…