The issue is that these apps aren't part of your Mac App Store (MAS) account for one of two reasons, your Mac shipped with OS X Snow Leopard 10.6 and these are not MAS versions of these apps because they came on the install DVD and can't be updated by the MAS. In which case the upgrade to the Mavericks versions would be a paid upgrade. Or your Mac came withOS X Lion 10.7 or newer and these are MAS versions, but you made the mistake of not accepting them into your MAS account when you first set up the Mac as new.
You might be able to delete these copies from your Mac, use OS X Recovery to install new copies, accept them into your MAS account and then get the free upgrade to the Mavericks versions.
OS X Recovery -
http://support.apple.com/kb/HT4718