17 加法 30 等于多少？
17 + 30 = 47
17加法30 等于 47
竖式演算
验算
- 用减法验算：47 − 30 = 17
- 用减法验算：47 − 17 = 30
相关题目
17 + 29 = 46
17 + 31 = 48
17 + 28 = 45
17 + 32 = 49
17 + 33 = 50
17 + 27 = 44
17 + 34 = 51
17 + 26 = 43
16 + 30 = 46
18 + 30 = 48
15 + 30 = 45
19 + 30 = 49
20 + 30 = 50
14 + 30 = 44
21 + 30 = 51
13 + 30 = 43
1 + 46 = 47
2 + 45 = 47
3 + 44 = 47
4 + 43 = 47
5 + 42 = 47
6 + 41 = 47
43 + 6 = 49
1 + 100 = 101
11 + 60 = 71
40 + 28 = 68
51 + 38 = 89
43 + 36 = 79
88 - 41 = 47
48 - 1 = 47