57 加法 15 等于多少？
57 + 15 = 72
57加法15 等于 72
竖式演算
验算
- 用减法验算：72 − 15 = 57
- 用减法验算：72 − 57 = 15
相关题目
57 + 14 = 71
57 + 16 = 73
57 + 13 = 70
57 + 17 = 74
57 + 12 = 69
57 + 18 = 75
57 + 11 = 68
57 + 19 = 76
56 + 15 = 71
58 + 15 = 73
55 + 15 = 70
59 + 15 = 74
60 + 15 = 75
54 + 15 = 69
61 + 15 = 76
53 + 15 = 68
1 + 71 = 72
2 + 70 = 72
3 + 69 = 72
4 + 68 = 72
5 + 67 = 72
6 + 66 = 72
8 + 2 = 10
77 + 60 = 137
84 + 52 = 136
25 + 82 = 107
43 + 73 = 116
66 + 73 = 139
98 - 26 = 72
18 × 4 = 72