Not sure if any of these will work, I haven't tried it:
https://www.quora.com/Is-there-a-keyboard-shortcut-in-Excel-for-paste-values
For the Mac, the Paste Values keboard shortcut is:
CTRL+CMD+V, CMD+V, ENTER
In Excel 2010 it's CTRL+Alt+V
Or...
In Excel 2011 Mac, you have to create your own shortcut.
Go to tools>customize keyboard. select edit under categories, you'll find "paste values" on the right (a couple items under paste special). Just press a shortcut sequence (command+d for example) and add that as a new shortcut.
my life has improved so much since.