nevermind I missed the part where you said it was a Note3, so its an android OS more then likely.
you should have an app for your gallery, find your pictures there and highlight then. then hit the option button and there should be an option to move the files to the media card. that should do the trick.
It's a very tedious and non-intuitive solution that's best described here: http/www.samsung.com/us/support/howtoguide/N0000006/13493/161003
Even then, since I had just installed a micro sd card, the only way it worked for me was going to the 2nd section, "Access pictures in my files" In the first set of directions there was no icon for my sd card. Good luck everyone!