I just went to the financial reimbursement, 2900 yuan. I told the cashier that I had 100, and you gave me 3000. The cashier smiled. What did I say wrong?

I should be given 2900 yuan. If I give the cashier another hundred dollars, the cashier has to give me back the hundred dollars I gave him, so that's 30 hundred dollars, which is 3000 dollars, so I gave him one hundred dollars, and then he gave it back to me, which is redundant.

In addition, 100 is unchanged. More than a hundred and less than a hundred are all the same. Not the same as a dollar. 99 yuan is very troublesome. 100 yuan is just right. So, the 100 you gave me didn't make any sense, and the cashier smiled.

Extended data:

Like this joke:

Once I went to the supermarket to queue up after shopping. When the person in front paid the money, the cashier said, "Your 100 yuan is fake." The man was surprised and said, "Impossible! This is what KFC just found for me! "