Q: Number keys not working
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Nov 14, 2015 1:32 PMby Nubz N.,HelpfulHey stevie8ch,
It sounds like you are getting good information for troubleshooting keys not workirg on the keyboard.
As mentioned in If your Apple wireless mouse, keyboard, or trackpad aren't working as expected - Apple Support, Keyboard Viewer is your first and easiest test to see if keys are responding (near the bottom).
The Notes below it add that you can test in single-user mode as a final test. Once in single-user mode, just type the keys in question (and maybe some others) to see if they show on the screen. If they don't appear on the screen then the keys are not working.
If they keys don't type there, you need to get your computer serviced.
Apple - Support - Service Answer Center
Take care.
