81 加法 79 等于多少？

81 + 78 = 159 81 + 80 = 161 81 + 77 = 158 81 + 81 = 162 81 + 76 = 157 81 + 82 = 163 81 + 83 = 164 81 + 75 = 156 80 + 79 = 159 82 + 79 = 161 83 + 79 = 162 79 + 79 = 158 84 + 79 = 163 78 + 79 = 157 85 + 79 = 164 77 + 79 = 156 60 + 100 = 160 61 + 99 = 160 62 + 98 = 160 63 + 97 = 160 64 + 96 = 160 65 + 95 = 160 35 + 95 = 130 95 + 9 = 104 75 + 75 = 150 89 + 81 = 170 43 + 68 = 111 69 + 48 = 117 16 × 10 = 160 20 × 8 = 160