84 加法 81 等于多少？

84 + 80 = 164 84 + 82 = 166 84 + 83 = 167 84 + 79 = 163 84 + 84 = 168 84 + 78 = 162 84 + 85 = 169 84 + 77 = 161 83 + 81 = 164 85 + 81 = 166 82 + 81 = 163 86 + 81 = 167 87 + 81 = 168 81 + 81 = 162 88 + 81 = 169 80 + 81 = 161 65 + 100 = 165 66 + 99 = 165 67 + 98 = 165 68 + 97 = 165 69 + 96 = 165 70 + 95 = 165 18 + 73 = 91 65 + 52 = 117 36 + 58 = 94 23 + 91 = 114 81 + 43 = 124 33 + 94 = 127 3 × 55 = 165 15 × 11 = 165