4 加法 31 等于多少？
4 + 31 = 35
4加法31 等于 35
竖式演算
验算
- 用减法验算：35 − 31 = 4
- 用减法验算：35 − 4 = 31
相关题目
4 + 30 = 34
4 + 32 = 36
4 + 29 = 33
4 + 33 = 37
4 + 28 = 32
4 + 34 = 38
4 + 35 = 39
4 + 27 = 31
3 + 31 = 34
5 + 31 = 36
2 + 31 = 33
6 + 31 = 37
1 + 31 = 32
7 + 31 = 38
8 + 31 = 39
9 + 31 = 40
1 + 34 = 35
2 + 33 = 35
3 + 32 = 35
5 + 30 = 35
6 + 29 = 35
7 + 28 = 35
27 + 12 = 39
31 + 11 = 42
20 + 62 = 82
40 + 37 = 77
42 + 44 = 86
35 + 50 = 85
78 - 43 = 35
45 - 10 = 35