30 加法 47 等于多少？
30 + 47 = 77
30加法47 等于 77
竖式演算
验算
- 用减法验算：77 − 47 = 30
- 用减法验算：77 − 30 = 47
相关题目
30 + 46 = 76
30 + 48 = 78
30 + 49 = 79
30 + 45 = 75
30 + 50 = 80
30 + 44 = 74
30 + 51 = 81
30 + 43 = 73
29 + 47 = 76
31 + 47 = 78
28 + 47 = 75
32 + 47 = 79
33 + 47 = 80
27 + 47 = 74
34 + 47 = 81
26 + 47 = 73
1 + 76 = 77
2 + 75 = 77
3 + 74 = 77
4 + 73 = 77
5 + 72 = 77
6 + 71 = 77
51 + 12 = 63
11 + 38 = 49
2 + 25 = 27
74 + 2 = 76
76 + 10 = 86
36 + 31 = 67
99 - 22 = 77
98 - 21 = 77