Borrow, beg or steal the ATI guide. You don't have the time for the McGraw Hill book. Just dig in a get studying! If you feel uncomfortable about doing math without a calculator, start practicing! Go to a website like purplemath.com and practice the basic arithmetic skills. Make a do-able plan, like 3 hours a day, go to the library so that you won't be distracted. Don't make excuses about skipping a day of practice/study. The TEAS is very passable, if you just concentrate on the ATI guide and commit enough time to read it in its entirety and do each question/passage/question. I have taught test prep classes for over 10 years, and the number 1 reason that students don't get the score they wanted is due to procrastination. Anyone is capable of passing the TEAS!! Just take it one page at a time when you study, and don't give up! Good luck!