Wireless Keyboard Shortcuts with iPad

I have the latest wireless bluetooth keyboard and I synced it to my iPad. On the pages app, the keyboard shortcuts for copy and paste work, but the keyboard shortcuts for bold, italics, underline, superscript, subscript do not work. Has anyone figured out how to use these shortcuts with the wireless keyboard? I believe it's command b, I, u for bold, italics, and underline, and command-control plus sign, minus sign for superscript and subscript, but I can't get it to work?

Message was edited by: Klumsytone