87 加法 90 等于多少？

87 + 89 = 176 87 + 91 = 178 87 + 92 = 179 87 + 88 = 175 87 + 93 = 180 87 + 87 = 174 87 + 94 = 181 87 + 86 = 173 86 + 90 = 176 88 + 90 = 178 85 + 90 = 175 89 + 90 = 179 84 + 90 = 174 90 + 90 = 180 83 + 90 = 173 91 + 90 = 181 77 + 100 = 177 78 + 99 = 177 79 + 98 = 177 80 + 97 = 177 81 + 96 = 177 82 + 95 = 177 29 + 90 = 119 69 + 18 = 87 45 + 5 = 50 14 + 29 = 43 43 + 37 = 80 27 + 80 = 107 3 × 59 = 177 59 × 3 = 177