29 加法 31 等于多少？
29 + 31 = 60
29加法31 等于 60
竖式演算
验算
- 用减法验算：60 − 31 = 29
- 用减法验算：60 − 29 = 31
相关题目
29 + 30 = 59
29 + 32 = 61
29 + 29 = 58
29 + 33 = 62
29 + 28 = 57
29 + 34 = 63
29 + 35 = 64
29 + 27 = 56
28 + 31 = 59
30 + 31 = 61
31 + 31 = 62
27 + 31 = 58
32 + 31 = 63
26 + 31 = 57
33 + 31 = 64
25 + 31 = 56
1 + 59 = 60
2 + 58 = 60
3 + 57 = 60
4 + 56 = 60
5 + 55 = 60
6 + 54 = 60
33 + 27 = 60
91 + 45 = 136
61 + 62 = 123
64 + 80 = 144
23 + 94 = 117
46 + 80 = 126
12 × 5 = 60
3 × 20 = 60