A lot of the shortcuts in blender uses the number pad, Where in blender can I change for example the point of view without using the shortcut.
Go to File-->User Preferences-->Input (or use a Ctrl+Alt+U shortcut) and check the Emulate Numpad box. You can now use the normal 1,2,3,4,5,6,7,8,9,0 buttons at the top of your keyboard to change camera views instead of the numpad.
Check out this answer also: How to reset the angle of rotated view without a numpad? It shows how to change the view without using any shortcuts.