A piece of jewelry is worth 800 yuan. A customer gave 1 0,000 yuan to the boss. The boss found that there was no money to change it, so he changed 1000 yuan with the boss next door and took it back to the customer 200 yuan. Later, the boss next door found that 1000 yuan was fake, so the boss paid 1000 yuan to the boss next door. When asked, the jewelry boss * *.

A: The loss of the jeweler * * *: 800+200= 1000 yuan.

Reasons: First, the jewelry owner lost a piece of jewelry worth 800 yuan; second, he gave it to the customer, 200 yuan. Although the boss paid 1000 yuan to the boss next door, this 1000 yuan was originally exchanged with the customer's 1000 yuan, and the jewelry boss did not use his own money before. Therefore, the jewelry store owner lost 1000 yuan.