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
39 + 18 = 57
82 + 76 = 158
36 + 27 = 63
25 + 6 = 31
4 + 47 = 51
35 + 73 = 108
76 - 6 = 70
97 - 27 = 70