1 加法 69 等于多少？
1 + 69 = 70
1加法69 等于 70
竖式演算
验算
- 用减法验算：70 − 69 = 1
- 用减法验算：70 − 1 = 69
相关题目
1 + 68 = 69
1 + 70 = 71
1 + 67 = 68
1 + 71 = 72
1 + 66 = 67
1 + 72 = 73
1 + 65 = 66
1 + 73 = 74
2 + 69 = 71
3 + 69 = 72
4 + 69 = 73
5 + 69 = 74
6 + 69 = 75
7 + 69 = 76
8 + 69 = 77
9 + 69 = 78
2 + 68 = 70
3 + 67 = 70
4 + 66 = 70
5 + 65 = 70
6 + 64 = 70
7 + 63 = 70
53 + 29 = 82
37 + 37 = 74
52 + 90 = 142
4 + 88 = 92
91 + 97 = 188
13 + 92 = 105
90 - 20 = 70
35 × 2 = 70