How do I sync my bookmarks between my Mac and iPad?

Hello,

You can use iCloud to synchronize your Safari bookmarks between your Macintosh and iPad.

Set up iCloud on your iPhone, iPad, or iPod touch - Apple Support

Set up iCloud on your Mac - Apple Support

Hello,

Once you have enabled Safari within iCloud settings then your Safari data will synchronize between all devices signed in with your Apple ID and have Safari for iCloud enabled.

What is your iPad’s exact model number and what version of the system software is it running?

Settings > General > About