2 加法 70 等于多少？
2 + 70 = 72
2加法70 等于 72
竖式演算
验算
- 用减法验算：72 − 70 = 2
- 用减法验算：72 − 2 = 70
相关题目
2 + 69 = 71
2 + 71 = 73
2 + 68 = 70
2 + 72 = 74
2 + 67 = 69
2 + 73 = 75
2 + 74 = 76
2 + 66 = 68
1 + 70 = 71
3 + 70 = 73
4 + 70 = 74
5 + 70 = 75
6 + 70 = 76
7 + 70 = 77
8 + 70 = 78
9 + 70 = 79
1 + 71 = 72
3 + 69 = 72
4 + 68 = 72
5 + 67 = 72
6 + 66 = 72
7 + 65 = 72
21 + 67 = 88
37 + 60 = 97
100 + 23 = 123
23 + 14 = 37
38 + 60 = 98
42 + 47 = 89
87 - 15 = 72
92 - 20 = 72