31 加法 3 等于多少？
31 + 3 = 34
31加法3 等于 34
竖式演算
验算
- 用减法验算：34 − 3 = 31
- 用减法验算：34 − 31 = 3
相关题目
31 + 2 = 33
31 + 4 = 35
31 + 1 = 32
31 + 5 = 36
31 + 6 = 37
31 + 7 = 38
31 + 8 = 39
31 + 9 = 40
30 + 3 = 33
32 + 3 = 35
29 + 3 = 32
33 + 3 = 36
28 + 3 = 31
34 + 3 = 37
35 + 3 = 38
27 + 3 = 30
1 + 33 = 34
2 + 32 = 34
3 + 31 = 34
4 + 30 = 34
5 + 29 = 34
6 + 28 = 34
21 + 20 = 41
54 + 33 = 87
26 + 21 = 47
14 + 40 = 54
26 + 53 = 79
40 + 57 = 97
54 - 20 = 34
73 - 39 = 34