Hi there CJMOONEY,
Thank you for posting to Apple Support Communities.
If you’re experiencing issues with Numbers and typing backwards, this may be because of the region set up on your Mac.
On your Mac, use the General pane of Language & Region System Preferences to select the languages shown in the Finder and in apps, and choose the formats used to show dates, times, numbers, and currency.
To open this pane, choose Apple menu
> System Preferences, click Language & Region
, then click General.
This information is provided in Change Language & Region General preferences on Mac.
If those steps don’t help, try shutting down your Mac and restarting.
Cheers.