How do I enable texting on my tablet?

[AC Question]

I have the hangouts and the messaging app on my G Pad F8.0 (LG-V495). I have a mobile network and a phone number. But whenever I try setting up my hangouts or messaging app it sends a verification code to me to verify my phone number. But where am I supposed to receive that verification code if I can't even use my texting apps? How do I set up my apps so I can text?