71 加法 21 等于多少？
71 + 21 = 92
71加法21 等于 92
竖式演算
验算
- 用减法验算：92 − 21 = 71
- 用减法验算：92 − 71 = 21
相关题目
71 + 20 = 91
71 + 22 = 93
71 + 19 = 90
71 + 23 = 94
71 + 24 = 95
71 + 18 = 89
71 + 25 = 96
71 + 17 = 88
70 + 21 = 91
72 + 21 = 93
69 + 21 = 90
73 + 21 = 94
74 + 21 = 95
68 + 21 = 89
75 + 21 = 96
67 + 21 = 88
1 + 91 = 92
2 + 90 = 92
3 + 89 = 92
4 + 88 = 92
5 + 87 = 92
6 + 86 = 92
50 + 8 = 58
10 + 63 = 73
8 + 70 = 78
65 + 4 = 69
48 + 41 = 89
2 + 56 = 58
100 - 8 = 92
93 - 1 = 92