61 加法 79 等于多少？

61 + 78 = 139 61 + 80 = 141 61 + 77 = 138 61 + 81 = 142 61 + 76 = 137 61 + 82 = 143 61 + 83 = 144 61 + 75 = 136 60 + 79 = 139 62 + 79 = 141 59 + 79 = 138 63 + 79 = 142 58 + 79 = 137 64 + 79 = 143 65 + 79 = 144 57 + 79 = 136 40 + 100 = 140 41 + 99 = 140 42 + 98 = 140 43 + 97 = 140 44 + 96 = 140 45 + 95 = 140 69 + 46 = 115 99 + 18 = 117 28 + 77 = 105 78 + 52 = 130 76 + 28 = 104 82 + 59 = 141 70 × 2 = 140 28 × 5 = 140