15 加法 69 等于多少？
15 + 69 = 84
15加法69 等于 84
竖式演算
验算
- 用减法验算：84 − 69 = 15
- 用减法验算：84 − 15 = 69
相关题目
15 + 68 = 83
15 + 70 = 85
15 + 67 = 82
15 + 71 = 86
15 + 66 = 81
15 + 72 = 87
15 + 65 = 80
15 + 73 = 88
14 + 69 = 83
16 + 69 = 85
13 + 69 = 82
17 + 69 = 86
12 + 69 = 81
18 + 69 = 87
11 + 69 = 80
19 + 69 = 88
1 + 83 = 84
2 + 82 = 84
3 + 81 = 84
4 + 80 = 84
5 + 79 = 84
6 + 78 = 84
93 + 52 = 145
94 + 92 = 186
7 + 67 = 74
39 + 28 = 67
9 + 17 = 26
35 + 55 = 90
84 × 1 = 84
6 × 14 = 84