2 加法 69 等于多少？
2 + 69 = 71
2加法69 等于 71
竖式演算
验算
- 用减法验算：71 − 69 = 2
- 用减法验算：71 − 2 = 69
相关题目
2 + 68 = 70
2 + 70 = 72
2 + 67 = 69
2 + 71 = 73
2 + 66 = 68
2 + 72 = 74
2 + 65 = 67
2 + 73 = 75
1 + 69 = 70
3 + 69 = 72
4 + 69 = 73
5 + 69 = 74
6 + 69 = 75
7 + 69 = 76
8 + 69 = 77
9 + 69 = 78
1 + 70 = 71
3 + 68 = 71
4 + 67 = 71
5 + 66 = 71
6 + 65 = 71
7 + 64 = 71
75 + 33 = 108
80 + 90 = 170
75 + 34 = 109
86 + 20 = 106
8 + 46 = 54
71 + 52 = 123
91 - 20 = 71
71 × 1 = 71