The school teacher was taking a class about basic maths. She asked little Johnny, "If I give you two rabbits and two rabbits and another two rabbits, how many have you got?"
"Seven," replied Johnny.
"No, Johnny," explained the teacher. "That's not the right answer. Listen. If I give you two apples, then I add another two apples and another two apples after that, how many have you got?"
"Six," replied Johnny.
"That's right," said the teacher. "So, let's try again. If I give you two rabbits and two rabbits and another two rabbits, how many have you got?"
"Seven," replied Johnny.
"Seven!" wailed the teacher. "How do you get seven?"
"Because I've already got one rabbit at home!"
"Seven," replied Johnny.
"No, Johnny," explained the teacher. "That's not the right answer. Listen. If I give you two apples, then I add another two apples and another two apples after that, how many have you got?"
"Six," replied Johnny.
"That's right," said the teacher. "So, let's try again. If I give you two rabbits and two rabbits and another two rabbits, how many have you got?"
"Seven," replied Johnny.
"Seven!" wailed the teacher. "How do you get seven?"
"Because I've already got one rabbit at home!"
