65 加法 21 等于多少？
65 + 21 = 86
65加法21 等于 86
竖式演算
验算
- 用减法验算：86 − 21 = 65
- 用减法验算：86 − 65 = 21
相关题目
65 + 20 = 85
65 + 22 = 87
65 + 19 = 84
65 + 23 = 88
65 + 24 = 89
65 + 18 = 83
65 + 25 = 90
65 + 17 = 82
64 + 21 = 85
66 + 21 = 87
67 + 21 = 88
63 + 21 = 84
68 + 21 = 89
62 + 21 = 83
69 + 21 = 90
61 + 21 = 82
1 + 85 = 86
2 + 84 = 86
3 + 83 = 86
4 + 82 = 86
5 + 81 = 86
6 + 80 = 86
62 + 12 = 74
2 + 85 = 87
5 + 43 = 48
17 + 70 = 87
62 + 35 = 97
37 + 52 = 89
92 - 6 = 86
2 × 43 = 86