Math Resources

I work in a maximum security state prison and  I teach basic math to students with a NRS math level of 1or 2.    Unfortunately many students have reading levels that correspond with their math levels. 

What resources have you found helpful in teaching these students.  Many of the resources that I have encountered either have either to high a reading level or are too "kiddish" for adults. 

The other problem I have is the bulk of my resources need to be print based as students have no internet access.  I have a small number (3) of stand-alone computers in my classroom that are running Window 98.  These do not have internet access.  They do have CD drives, USB ports and 2-1/2"  floppy drive (yes floppy drive).