There is a hidden menu that isn’t selected by default. All you have to do is make sure you have updated your iTunes to 10.5.1 or higher then follow these steps:
1) Click View > View Options or (keyboard shortcut ⌘cmd +J)
2) Tick ‘iCloud Download’ and ‘iCloud Status’
3) Click OK
You should now see an extra column in iTunes telling you whether your song is ‘Uploaded’ or ‘Matched’.
Please let me know if this has worked for you. Thanks.