17 加法 70 等于多少？
17 + 70 = 87
17加法70 等于 87
竖式演算
验算
- 用减法验算：87 − 70 = 17
- 用减法验算：87 − 17 = 70
相关题目
17 + 69 = 86
17 + 71 = 88
17 + 68 = 85
17 + 72 = 89
17 + 67 = 84
17 + 73 = 90
17 + 74 = 91
17 + 66 = 83
16 + 70 = 86
18 + 70 = 88
15 + 70 = 85
19 + 70 = 89
20 + 70 = 90
14 + 70 = 84
21 + 70 = 91
13 + 70 = 83
1 + 86 = 87
2 + 85 = 87
3 + 84 = 87
4 + 83 = 87
5 + 82 = 87
6 + 81 = 87
72 + 4 = 76
21 + 21 = 42
7 + 10 = 17
67 + 1 = 68
47 + 40 = 87
11 + 11 = 22
90 - 3 = 87
29 × 3 = 87