By the meaning of multiplication, $$5\times 6$$ means the sum of five $$6$$\textquotesingle s. 
Which of the following expression doesn\textquotesingle t mean the sum of 6 + 6 + 6 + 6 + 6? 

1) $$6+6+6+6+6$$ 
2) $$5+6$$ 
3) $$5\times 6$$ 