Students in MATH 1110 will typically be going on to MATH 1180 (for eventual calculus) or MATH 2000 (brief calculus). The TI-83 (not Plus), TI-86, TI-92 and the TI-92 Plus are no longer manufactured.
The watches' calculator function can add, subtract, multiply, and divide up to eight digits. As for watch functions, you get ...