84 加法 20 等于多少？
84 + 20 = 104
84加法20 等于 104
竖式演算
验算
- 用减法验算：104 − 20 = 84
- 用减法验算：104 − 84 = 20
相关题目
84 + 19 = 103
84 + 21 = 105
84 + 22 = 106
84 + 18 = 102
84 + 23 = 107
84 + 17 = 101
84 + 24 = 108
84 + 16 = 100
83 + 20 = 103
85 + 20 = 105
82 + 20 = 102
86 + 20 = 106
87 + 20 = 107
81 + 20 = 101
88 + 20 = 108
80 + 20 = 100
4 + 100 = 104
5 + 99 = 104
6 + 98 = 104
7 + 97 = 104
8 + 96 = 104
9 + 95 = 104
83 + 9 = 92
56 + 70 = 126
97 + 92 = 189
82 + 71 = 153
31 + 71 = 102
96 + 60 = 156
2 × 52 = 104
8 × 13 = 104