17 加法 13 等于多少？
17 + 13 = 30
17加法13 等于 30
竖式演算
验算
- 用减法验算：30 − 13 = 17
- 用减法验算：30 − 17 = 13
相关题目
17 + 12 = 29
17 + 14 = 31
17 + 11 = 28
17 + 15 = 32
17 + 10 = 27
17 + 16 = 33
17 + 17 = 34
17 + 9 = 26
16 + 13 = 29
18 + 13 = 31
15 + 13 = 28
19 + 13 = 32
20 + 13 = 33
14 + 13 = 27
21 + 13 = 34
13 + 13 = 26
1 + 29 = 30
2 + 28 = 30
3 + 27 = 30
4 + 26 = 30
5 + 25 = 30
6 + 24 = 30
60 + 73 = 133
8 + 33 = 41
32 + 19 = 51
38 + 24 = 62
65 + 53 = 118
39 + 18 = 57
32 - 2 = 30
44 - 14 = 30