21 加法 67 等于多少？
21 + 67 = 88
21加法67 等于 88
竖式演算
验算
- 用减法验算：88 − 67 = 21
- 用减法验算：88 − 21 = 67
相关题目
21 + 66 = 87
21 + 68 = 89
21 + 65 = 86
21 + 69 = 90
21 + 64 = 85
21 + 70 = 91
21 + 71 = 92
21 + 63 = 84
20 + 67 = 87
22 + 67 = 89
19 + 67 = 86
23 + 67 = 90
24 + 67 = 91
18 + 67 = 85
25 + 67 = 92
17 + 67 = 84
1 + 87 = 88
2 + 86 = 88
3 + 85 = 88
4 + 84 = 88
5 + 83 = 88
6 + 82 = 88
23 + 10 = 33
53 + 10 = 63
66 + 13 = 79
60 + 35 = 95
13 + 66 = 79
14 + 25 = 39
8 × 11 = 88
92 - 4 = 88