2 加法 47 等于多少？
2 + 47 = 49
2加法47 等于 49
竖式演算
验算
- 用减法验算：49 − 47 = 2
- 用减法验算：49 − 2 = 47
相关题目
2 + 46 = 48
2 + 48 = 50
2 + 49 = 51
2 + 45 = 47
2 + 50 = 52
2 + 44 = 46
2 + 51 = 53
2 + 43 = 45
1 + 47 = 48
3 + 47 = 50
4 + 47 = 51
5 + 47 = 52
6 + 47 = 53
7 + 47 = 54
8 + 47 = 55
9 + 47 = 56
1 + 48 = 49
3 + 46 = 49
4 + 45 = 49
5 + 44 = 49
6 + 43 = 49
7 + 42 = 49
40 + 1 = 41
22 + 63 = 85
3 + 95 = 98
83 + 12 = 95
8 + 20 = 28
31 + 41 = 72
92 - 43 = 49
64 - 15 = 49