84 加法 40 等于多少？
84 + 40 = 124
84加法40 等于 124
竖式演算
验算
- 用减法验算：124 − 40 = 84
- 用减法验算：124 − 84 = 40
相关题目
84 + 39 = 123
84 + 41 = 125
84 + 38 = 122
84 + 42 = 126
84 + 37 = 121
84 + 43 = 127
84 + 44 = 128
84 + 36 = 120
83 + 40 = 123
85 + 40 = 125
82 + 40 = 122
86 + 40 = 126
87 + 40 = 127
81 + 40 = 121
88 + 40 = 128
80 + 40 = 120
24 + 100 = 124
25 + 99 = 124
26 + 98 = 124
27 + 97 = 124
28 + 96 = 124
29 + 95 = 124
99 + 20 = 119
50 + 95 = 145
23 + 57 = 80
49 + 46 = 95
68 + 60 = 128
57 + 91 = 148
4 × 31 = 124
2 × 62 = 124