Why there is no the word "piece" ? I read a sentence as below: Sentence B: On his way to the sweet shop,he dropped his fifty pence and it bounced along the pavement and then disappeared down a drain. My question: 1.why it is not " fifty pence piece" here but only " fifty pence" since piece refers to physical coins and fifty pence refer to amount of money ? "he dropped his fifty pence" means " he dropped his coin(coins)" ,right ? 2.It bounced along ... Does it imply there was only one coin and it was a fifty-pence piece (a coin worth 50 pence) ? 3. Actually there is another sentence A ahead : I gave him fifty pence and advised him to save it . I suppose that the word" it" means it was only one coin worth 50 pence instead of several coins ,that's why it is not necessary to add " piece" in sentence A . Am I right ? Thank you so much