15 加法 57 等于多少？
15 + 57 = 72
15加法57 等于 72
竖式演算
验算
- 用减法验算：72 − 57 = 15
- 用减法验算：72 − 15 = 57
相关题目
15 + 56 = 71
15 + 58 = 73
15 + 55 = 70
15 + 59 = 74
15 + 60 = 75
15 + 54 = 69
15 + 61 = 76
15 + 53 = 68
14 + 57 = 71
16 + 57 = 73
13 + 57 = 70
17 + 57 = 74
12 + 57 = 69
18 + 57 = 75
11 + 57 = 68
19 + 57 = 76
1 + 71 = 72
2 + 70 = 72
3 + 69 = 72
4 + 68 = 72
5 + 67 = 72
6 + 66 = 72
9 + 3 = 12
19 + 65 = 84
60 + 91 = 151
27 + 49 = 76
35 + 72 = 107
55 + 6 = 61
97 - 25 = 72
75 - 3 = 72