Logitech k780 keyboard - can't figure out how to do page up/down

[VitoBotta]

I replaced my magic keyboard 1st gen with the Logitech K780 because I had BT issues. The Logitech keyboard works great but fn+down/up arrow doesn't do page down/up like with the magic keyboard. What's the shortcut with this keyboard? I wonder if it's different with Logitech kb in general? Thanks

 

[VitoBotta]

I just realized that I have pgdown and pgup buttons in the numeric keys which work with fn. So problem solved