84 加法 30 等于多少？
84 + 30 = 114
84加法30 等于 114
竖式演算
验算
- 用减法验算：114 − 30 = 84
- 用减法验算：114 − 84 = 30
相关题目
84 + 29 = 113
84 + 31 = 115
84 + 28 = 112
84 + 32 = 116
84 + 33 = 117
84 + 27 = 111
84 + 34 = 118
84 + 26 = 110
83 + 30 = 113
85 + 30 = 115
82 + 30 = 112
86 + 30 = 116
87 + 30 = 117
81 + 30 = 111
88 + 30 = 118
80 + 30 = 110
14 + 100 = 114
15 + 99 = 114
16 + 98 = 114
17 + 97 = 114
18 + 96 = 114
19 + 95 = 114
17 + 66 = 83
61 + 66 = 127
55 + 60 = 115
39 + 26 = 65
20 + 91 = 111
8 + 2 = 10
3 × 38 = 114
38 × 3 = 114