87 加法 84 等于多少？
87 + 84 = 171
87加法84 等于 171
竖式演算
验算
- 用减法验算：171 − 84 = 87
- 用减法验算：171 − 87 = 84
相关题目
87 + 83 = 170
87 + 85 = 172
87 + 82 = 169
87 + 86 = 173
87 + 87 = 174
87 + 81 = 168
87 + 88 = 175
87 + 80 = 167
86 + 84 = 170
88 + 84 = 172
85 + 84 = 169
89 + 84 = 173
84 + 84 = 168
90 + 84 = 174
83 + 84 = 167
91 + 84 = 175
71 + 100 = 171
72 + 99 = 171
73 + 98 = 171
74 + 97 = 171
75 + 96 = 171
76 + 95 = 171
73 + 29 = 102
65 + 69 = 134
97 + 87 = 184
36 + 87 = 123
98 + 27 = 125
99 + 5 = 104
3 × 57 = 171
9 × 19 = 171