15 加法 27 等于多少？
15 + 27 = 42
15加法27 等于 42
竖式演算
验算
- 用减法验算：42 − 27 = 15
- 用减法验算：42 − 15 = 27
相关题目
15 + 26 = 41
15 + 28 = 43
15 + 29 = 44
15 + 25 = 40
15 + 30 = 45
15 + 24 = 39
15 + 31 = 46
15 + 23 = 38
14 + 27 = 41
16 + 27 = 43
13 + 27 = 40
17 + 27 = 44
12 + 27 = 39
18 + 27 = 45
11 + 27 = 38
19 + 27 = 46
1 + 41 = 42
2 + 40 = 42
3 + 39 = 42
4 + 38 = 42
5 + 37 = 42
6 + 36 = 42
80 + 46 = 126
55 + 25 = 80
95 + 72 = 167
74 + 62 = 136
78 + 6 = 84
44 + 60 = 104
81 - 39 = 42
71 - 29 = 42