7 加法 71 等于多少？
7 + 71 = 78
7加法71 等于 78
竖式演算
验算
- 用减法验算：78 − 71 = 7
- 用减法验算：78 − 7 = 71
相关题目
7 + 70 = 77
7 + 72 = 79
7 + 69 = 76
7 + 73 = 80
7 + 74 = 81
7 + 68 = 75
7 + 75 = 82
7 + 67 = 74
6 + 71 = 77
8 + 71 = 79
5 + 71 = 76
9 + 71 = 80
4 + 71 = 75
10 + 71 = 81
11 + 71 = 82
3 + 71 = 74
1 + 77 = 78
2 + 76 = 78
3 + 75 = 78
4 + 74 = 78
5 + 73 = 78
6 + 72 = 78
40 + 39 = 79
70 + 8 = 78
100 + 47 = 147
28 + 21 = 49
21 + 22 = 43
22 + 77 = 99
26 × 3 = 78
6 × 13 = 78