9 加法 69 等于多少？
9 + 69 = 78
9加法69 等于 78
竖式演算
验算
- 用减法验算：78 − 69 = 9
- 用减法验算：78 − 9 = 69
相关题目
9 + 68 = 77
9 + 70 = 79
9 + 67 = 76
9 + 71 = 80
9 + 66 = 75
9 + 72 = 81
9 + 65 = 74
9 + 73 = 82
8 + 69 = 77
10 + 69 = 79
11 + 69 = 80
7 + 69 = 76
12 + 69 = 81
6 + 69 = 75
13 + 69 = 82
5 + 69 = 74
1 + 77 = 78
2 + 76 = 78
3 + 75 = 78
4 + 74 = 78
5 + 73 = 78
6 + 72 = 78
80 + 80 = 160
65 + 8 = 73
73 + 81 = 154
98 + 70 = 168
96 + 73 = 169
8 + 46 = 54
95 - 17 = 78
87 - 9 = 78