30 加法 17 等于多少？
30 + 17 = 47
30加法17 等于 47
竖式演算
验算
- 用减法验算：47 − 17 = 30
- 用减法验算：47 − 30 = 17
相关题目
30 + 16 = 46
30 + 18 = 48
30 + 15 = 45
30 + 19 = 49
30 + 20 = 50
30 + 14 = 44
30 + 21 = 51
30 + 13 = 43
29 + 17 = 46
31 + 17 = 48
28 + 17 = 45
32 + 17 = 49
33 + 17 = 50
27 + 17 = 44
34 + 17 = 51
26 + 17 = 43
1 + 46 = 47
2 + 45 = 47
3 + 44 = 47
4 + 43 = 47
5 + 42 = 47
6 + 41 = 47
46 + 42 = 88
21 + 16 = 37
84 + 5 = 89
44 + 24 = 68
70 + 27 = 97
26 + 70 = 96
64 - 17 = 47
77 - 30 = 47