Things to check [in this order]:
On the iPad:
Settings > iCloud > signed into an iCloud account [I assume that's what you meant by "icloud enabled."]
Settings > iCloud > Documents & Data > On [and Use Cellular Data > On if applicable]
Settings > Pages > Use iCloud > ON
In Pages, verify that you see your documents in the Pages "sandbox".
Create a new test document with a distinctive name and type in some sample text.
Click the Documents button to return to the document list.
Verify that none of the document icons has the upper right corner folded back with an upward-pointing arrow behind.
In a browser on a Mac or PC [not the iPad]:
Open a new window, open icloud.com and sign into the same iCloud account.
Click on the iWork icon.
Click on the Pages tab.
Verify that you can see the same documents here, including the new test document.
On your MacBook:
System Preferences > iCloud > signed on the same iCloud account [Again, I assume so.]
System Preferences > iCloud > Documents & Data checked
System Preferences > Mail, Contacts & Calendars > [accountname] > Documents & Data checked
Pages > File > Open...
The open dialog should have "iCloud" and "On My Mac" at the upper left. Select "iCloud" by clicking on it, which should cause it to be surrounded by a rounded rectangle if it was not so already.
Verify that you see the same documents here, including the new test document.
Open the new test document to verify that it has the sample text.
Make a small change, save the result.
Back on the iPad, open the new test document and verify that the small change has been made.