31 加法 38 等于多少？
31 + 38 = 69
31加法38 等于 69
竖式演算
验算
- 用减法验算：69 − 38 = 31
- 用减法验算：69 − 31 = 38
相关题目
31 + 37 = 68
31 + 39 = 70
31 + 40 = 71
31 + 36 = 67
31 + 41 = 72
31 + 35 = 66
31 + 42 = 73
31 + 34 = 65
30 + 38 = 68
32 + 38 = 70
29 + 38 = 67
33 + 38 = 71
28 + 38 = 66
34 + 38 = 72
35 + 38 = 73
27 + 38 = 65
1 + 68 = 69
2 + 67 = 69
3 + 66 = 69
4 + 65 = 69
5 + 64 = 69
6 + 63 = 69
13 + 21 = 34
47 + 21 = 68
44 + 31 = 75
74 + 12 = 86
58 + 30 = 88
100 + 82 = 182
92 - 23 = 69
82 - 13 = 69