2 加法 45 等于多少？
2 + 45 = 47
2加法45 等于 47
竖式演算
验算
- 用减法验算：47 − 45 = 2
- 用减法验算：47 − 2 = 45
相关题目
2 + 44 = 46
2 + 46 = 48
2 + 47 = 49
2 + 43 = 45
2 + 48 = 50
2 + 42 = 44
2 + 49 = 51
2 + 41 = 43
1 + 45 = 46
3 + 45 = 48
4 + 45 = 49
5 + 45 = 50
6 + 45 = 51
7 + 45 = 52
8 + 45 = 53
9 + 45 = 54
1 + 46 = 47
3 + 44 = 47
4 + 43 = 47
5 + 42 = 47
6 + 41 = 47
7 + 40 = 47
1 + 21 = 22
42 + 100 = 142
10 + 51 = 61
27 + 30 = 57
42 + 30 = 72
92 + 3 = 95
56 - 9 = 47
67 - 20 = 47