1+ 1= 1 indicates that a father and a mother gave birth to a baby.
1+ 1 = 3 A father and a mother became a family of three after giving birth to a baby.
1+ 1 = 4 A father and a mother gave birth to twins and became a family of four. This is an open question.
When the units are unified, people agree that: 1+ 1=2.
In logical operation, 1+ 1= 1.
In binary, 1+ 1= 10.
In the eyes of philosophers, 1+ 1= is sometimes another result! ! So this kind of problem is to develop your brain thinking training team! ! You can play freely! ! ! You're welcome! !