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 33 + 90 = 123 51 + 62 = 113 70 + 31 = 101 55 + 29 = 84 70 + 79 = 149 29 + 13 = 42 35 + 32 = 67 12 + 95 = 107