Moving to the sd card still left some of the app on internal. Application manager, to move the app itself to the sd card & actually run.
It's just drag and drop from one 'drive' to the other. The easiest way is to plug the tablet into the computer and use Windows Explorer. You can move music and pics to your SD card if you'd like. If the SD card doesn't show in the list, tap the Menu icon (located in the upper-right) then tap SD card (located on the left).
Tap the Menu icon (located in the upper-right). To select all, after selecting at least one file, tap the Menu icon (located in the upper-right) and tap Select all. Move Files from Internal Storage to SD Card - ASUS ZenPad™ Z8.