70 加法 17 等于多少？
70 + 17 = 87
70加法17 等于 87
竖式演算
验算
- 用减法验算：87 − 17 = 70
- 用减法验算：87 − 70 = 17
相关题目
70 + 16 = 86
70 + 18 = 88
70 + 15 = 85
70 + 19 = 89
70 + 20 = 90
70 + 14 = 84
70 + 21 = 91
70 + 13 = 83
69 + 17 = 86
71 + 17 = 88
68 + 17 = 85
72 + 17 = 89
67 + 17 = 84
73 + 17 = 90
74 + 17 = 91
66 + 17 = 83
1 + 86 = 87
2 + 85 = 87
3 + 84 = 87
4 + 83 = 87
5 + 82 = 87
6 + 81 = 87
78 + 100 = 178
34 + 10 = 44
32 + 24 = 56
16 + 20 = 36
67 + 20 = 87
85 + 13 = 98
92 - 5 = 87
97 - 10 = 87