4 加法 27 等于多少？
4 + 27 = 31
4加法27 等于 31
竖式演算
验算
- 用减法验算：31 − 27 = 4
- 用减法验算：31 − 4 = 27
相关题目
4 + 26 = 30
4 + 28 = 32
4 + 29 = 33
4 + 25 = 29
4 + 30 = 34
4 + 24 = 28
4 + 31 = 35
4 + 23 = 27
3 + 27 = 30
5 + 27 = 32
2 + 27 = 29
6 + 27 = 33
1 + 27 = 28
7 + 27 = 34
8 + 27 = 35
9 + 27 = 36
1 + 30 = 31
2 + 29 = 31
3 + 28 = 31
5 + 26 = 31
6 + 25 = 31
7 + 24 = 31
38 + 71 = 109
93 + 30 = 123
25 + 69 = 94
82 + 70 = 152
62 + 71 = 133
68 + 40 = 108
54 - 23 = 31
99 - 68 = 31