61 加法 21 等于多少？
61 + 21 = 82
61加法21 等于 82
竖式演算
验算
- 用减法验算：82 − 21 = 61
- 用减法验算：82 − 61 = 21
相关题目
61 + 20 = 81
61 + 22 = 83
61 + 19 = 80
61 + 23 = 84
61 + 24 = 85
61 + 18 = 79
61 + 25 = 86
61 + 17 = 78
60 + 21 = 81
62 + 21 = 83
59 + 21 = 80
63 + 21 = 84
58 + 21 = 79
64 + 21 = 85
65 + 21 = 86
57 + 21 = 78
1 + 81 = 82
2 + 80 = 82
3 + 79 = 82
4 + 78 = 82
5 + 77 = 82
6 + 76 = 82
23 + 62 = 85
43 + 53 = 96
18 + 71 = 89
31 + 56 = 87
24 + 12 = 36
52 + 24 = 76
85 - 3 = 82
95 - 13 = 82