23 加法 15 等于多少？
23 + 15 = 38
23加法15 等于 38
竖式演算
验算
- 用减法验算：38 − 15 = 23
- 用减法验算：38 − 23 = 15
相关题目
23 + 14 = 37
23 + 16 = 39
23 + 13 = 36
23 + 17 = 40
23 + 12 = 35
23 + 18 = 41
23 + 11 = 34
23 + 19 = 42
22 + 15 = 37
24 + 15 = 39
21 + 15 = 36
25 + 15 = 40
20 + 15 = 35
26 + 15 = 41
19 + 15 = 34
27 + 15 = 42
1 + 37 = 38
2 + 36 = 38
3 + 35 = 38
4 + 34 = 38
5 + 33 = 38
6 + 32 = 38
26 + 40 = 66
1 + 78 = 79
53 + 45 = 98
74 + 25 = 99
66 + 23 = 89
26 + 63 = 89
93 - 55 = 38
46 - 8 = 38