how do I toggle between mouse and keyboard with no num-lock on my keyboard?

[Ancient-One]

Trying to use mouse keys with toggle, but Win 10 instructs to use the num-lock key to toggle.  there is no num-lock key on my keyboard - HP Pavilion desktop model 510a010.  Mouse wasn't working so decided I'd better figure out how to use the keyboard to move the cursor.  So how do I toggle between mouse and keys without a num-lock.  Help, pls.

[mdklassen]

I looked at: https://support.hp.com/in-en/document/c05112057

and a "standard" HP USB keyboard was included with the purchase of your desktop computer.

This keyboard should have a 'NUM-LOCK' key, probably just above the '7' key on the right-side "keypad".

If not, replace the keyboard.

Since the mouse is not working, replace the mouse, too.