31 加法 29 等于多少？
31 + 29 = 60
31加法29 等于 60
竖式演算
验算
- 用减法验算：60 − 29 = 31
- 用减法验算：60 − 31 = 29
相关题目
31 + 28 = 59
31 + 30 = 61
31 + 31 = 62
31 + 27 = 58
31 + 32 = 63
31 + 26 = 57
31 + 33 = 64
31 + 25 = 56
30 + 29 = 59
32 + 29 = 61
29 + 29 = 58
33 + 29 = 62
28 + 29 = 57
34 + 29 = 63
35 + 29 = 64
27 + 29 = 56
1 + 59 = 60
2 + 58 = 60
3 + 57 = 60
4 + 56 = 60
5 + 55 = 60
6 + 54 = 60
31 + 74 = 105
35 + 19 = 54
14 + 92 = 106
36 + 59 = 95
18 + 5 = 23
46 + 48 = 94
15 × 4 = 60
69 - 9 = 60