99 加法 80 等于多少？

99 + 79 = 178 99 + 81 = 180 99 + 78 = 177 99 + 82 = 181 99 + 83 = 182 99 + 77 = 176 99 + 84 = 183 99 + 76 = 175 98 + 80 = 178 100 + 80 = 180 97 + 80 = 177 96 + 80 = 176 95 + 80 = 175 94 + 80 = 174 93 + 80 = 173 92 + 80 = 172 79 + 100 = 179 80 + 99 = 179 81 + 98 = 179 82 + 97 = 179 83 + 96 = 179 84 + 95 = 179 13 + 95 = 108 78 + 90 = 168 17 + 13 = 30 87 + 40 = 127 60 + 76 = 136 36 + 17 = 53 68 + 72 = 140 79 + 5 = 84