13 加法 17 等于多少？
13 + 17 = 30
13加法17 等于 30
竖式演算
验算
- 用减法验算：30 − 17 = 13
- 用减法验算：30 − 13 = 17
相关题目
13 + 16 = 29
13 + 18 = 31
13 + 15 = 28
13 + 19 = 32
13 + 20 = 33
13 + 14 = 27
13 + 21 = 34
13 + 13 = 26
12 + 17 = 29
14 + 17 = 31
11 + 17 = 28
15 + 17 = 32
10 + 17 = 27
16 + 17 = 33
17 + 17 = 34
9 + 17 = 26
1 + 29 = 30
2 + 28 = 30
3 + 27 = 30
4 + 26 = 30
5 + 25 = 30
6 + 24 = 30
7 + 15 = 22
84 + 54 = 138
45 + 62 = 107
49 + 22 = 71
15 + 46 = 61
75 + 81 = 156
85 - 55 = 30
44 - 14 = 30