A simple way to teach dogs arithmetic: \x0d\ 1. First of all, the owner must be able to make the dog bark in a certain posture. This gesture seems unimportant, but it is actually an order. \x0d\ 2。 Then the owner can raise his hand to let the dog bark when he feeds the dog. Once the dog barks, the owner will give it a reward. \x0d\ 3。 Then put your hand down and point it at the dog. This is an order to stop the dog. \x0d\ 4。 Soon the owner can easily raise his hand to let the dog bark (just like the owner fiddling with the dog's collar), and when the owner puts his hand down, the dog will stop. \x0d\ 5。 After several trainings, the next time the owner and friends get together, they can give the dog a few simple math problems (addition and subtraction) at will. After asking the question, the owner quietly raised his hand to let the dog bark. When the number of times the dog barks is the same as the answer to the question, the owner puts down his hand and tells the dog to stop. After that, the owner can reward the dog. So dogs can learn to count.