81 加法 83 等于多少？

81 + 82 = 163 81 + 84 = 165 81 + 85 = 166 81 + 81 = 162 81 + 86 = 167 81 + 80 = 161 81 + 87 = 168 81 + 79 = 160 80 + 83 = 163 82 + 83 = 165 83 + 83 = 166 79 + 83 = 162 84 + 83 = 167 78 + 83 = 161 85 + 83 = 168 77 + 83 = 160 64 + 100 = 164 65 + 99 = 164 66 + 98 = 164 67 + 97 = 164 68 + 96 = 164 69 + 95 = 164 38 + 44 = 82 98 + 20 = 118 28 + 90 = 118 80 + 98 = 178 9 + 8 = 17 36 + 49 = 85 2 × 82 = 164 82 × 2 = 164