84
1 + 0 + 9098888 - 83 - 99 = 9,098,707
83
83
There isn't a sec key on the TI-83 Plus. Secant is 1/cosine, which is what is used to find secant on a TI-83 Plus. For example, to find the secant of 4, enter 1/sec(4).
the answer is 83
83 + 24 - 1 x 4 = 83 + 24 - 4 = 107 - 4 = 103
166
- 22 + (-83) + 5 = -22 - 83 + 5 = -100
83 + 6*7*9 + 1 = 512 + 378 + 1 = 891
82 + 83 + 94 = 259
36 + 47 = 83
6100000000 + 71000000 + 5100000 + 71000 + 83 = 6176171083