21 加法 71 等于多少？
21 + 71 = 92
21加法71 等于 92
竖式演算
验算
- 用减法验算：92 − 71 = 21
- 用减法验算：92 − 21 = 71
相关题目
21 + 70 = 91
21 + 72 = 93
21 + 69 = 90
21 + 73 = 94
21 + 74 = 95
21 + 68 = 89
21 + 75 = 96
21 + 67 = 88
20 + 71 = 91
22 + 71 = 93
19 + 71 = 90
23 + 71 = 94
24 + 71 = 95
18 + 71 = 89
25 + 71 = 96
17 + 71 = 88
1 + 91 = 92
2 + 90 = 92
3 + 89 = 92
4 + 88 = 92
5 + 87 = 92
6 + 86 = 92
31 + 12 = 43
4 + 73 = 77
61 + 11 = 72
32 + 55 = 87
20 + 44 = 64
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99 - 7 = 92
98 - 6 = 92