Advanced Subtraction is Fun! is Freeware. It may be used in any school, or in any home free of charge. You may upload this game and attached documents to any BBS (keep the "Read-me" document with the game please). You may make as many copies of this game as you wish and give it to whomever you choose. This can include students, parents, teachers, or anyone else.
If you have any questions, comments, or just general feedback write to me:
