If you have connected such an external keyboard, have you pressed the "Numlock" key?
If you have pressed the "Numlock" key, use it again Press the "Numlock" key once on the external keyboard and it will return to normal
You can find the "Fn" key in the computer keyboard, which is also called the "second function" key", because when you press this key and then press another key with two functions, that key will have the second function
#Then Then find the "F8" key, because the second function of this key is the function of the "Numlock" key. Press the "Fn" and "Numlock" keys at the same time to complete the unlocking of the keyboard numeric keys
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