17 加法 55 等于多少？
17 + 55 = 72
17加法55 等于 72
竖式演算
验算
- 用减法验算：72 − 55 = 17
- 用减法验算：72 − 17 = 55
相关题目
17 + 56 = 73
17 + 54 = 71
17 + 57 = 74
17 + 53 = 70
17 + 58 = 75
17 + 52 = 69
17 + 59 = 76
17 + 51 = 68
16 + 55 = 71
18 + 55 = 73
15 + 55 = 70
19 + 55 = 74
20 + 55 = 75
14 + 55 = 69
21 + 55 = 76
13 + 55 = 68
1 + 71 = 72
2 + 70 = 72
3 + 69 = 72
4 + 68 = 72
5 + 67 = 72
6 + 66 = 72
68 + 26 = 94
17 + 68 = 85
74 + 18 = 92
72 + 54 = 126
61 + 48 = 109
79 + 1 = 80
2 × 36 = 72
81 - 9 = 72