66 加法 20 等于多少？
66 + 20 = 86
66加法20 等于 86
竖式演算
验算
- 用减法验算：86 − 20 = 66
- 用减法验算：86 − 66 = 20
相关题目
66 + 19 = 85
66 + 21 = 87
66 + 22 = 88
66 + 18 = 84
66 + 23 = 89
66 + 17 = 83
66 + 24 = 90
66 + 16 = 82
65 + 20 = 85
67 + 20 = 87
64 + 20 = 84
68 + 20 = 88
69 + 20 = 89
63 + 20 = 83
70 + 20 = 90
62 + 20 = 82
1 + 85 = 86
2 + 84 = 86
3 + 83 = 86
4 + 82 = 86
5 + 81 = 86
6 + 80 = 86
16 + 81 = 97
4 + 54 = 58
21 + 24 = 45
100 + 57 = 157
4 + 92 = 96
34 + 100 = 134
91 - 5 = 86
2 × 43 = 86