Three people sent each other a WeChat. How many messages did they send?

Three students sent one WeChat to each other, and a total of six were sent.

Let's say three students are A, B and C.

Take A as an example, to send a message to B and C respectively, 1+ 1 = 2, that is, A needs to send two messages.

In other words, Party A, Party B and Party C need to send two messages respectively.

2 * 3 = 6, which means that six messages have been sent.

Extended data:

The above calculation applies the calculation rules of multiplication and integer multiplication:

1, starting from the right, multiply the first factor by the number on each bit of the second factor, and the end of the number will be aligned with which bit of the second factor and on which bit of the factor;

2. Then add up the numbers multiplied by several times. (Multiply with 0 at the end of an integer: you can multiply the number before 0 first, then see how many zeros are at the end of each factor, and add a few zeros at the end of the multiplied number. )