Current location - Training Enrollment Network - Mathematics courses - There are five people in this group. At the New Year's party, they exchanged gifts. How many gifts are they going to give? How to solve this problem?
There are five people in this group. At the New Year's party, they exchanged gifts. How many gifts are they going to give? How to solve this problem?
Solution: (5*4)÷2= 10 (pieces)
A: A gift for 10.
(Note: This is a handshake problem. If you don't understand, you can draw a five-point line segment.
Connect every two points, be careful not to repeat. )