Quiz playing is a wonderful way to increase your knowledge of English as a Second Language. Remember that all of our ESL quizzes have titles that are both friendly and technical at the same time… In the case of this quiz you might like to tell your friends about “Ten of Those, Please” but no doubt your teachers will talk about the “Transaction Phrases quiz”! If you hear a technical term and you want to find a quiz about the subject then just look through the list of quiz titles until you find what you need.
When you are 'out and about' - shopping at a market, buying tickets and other purchases - you need to understand the right transaction phrases and expressions. Can you ask clearly for 'ten of those, please?'?
How are your transaction phrases? Are you ready for an efficient shopping trip?
If you just give him the £50 (Answer 1), he may count them and tell you this is not enough, or ask you if you don't understand the system ... or even accuse you of trying to cheat him.
Answer 3 is fair enough, but will hold him up and waste a bit more of his time.
Don't even think about starting on Answer 4!