22 减法 21 等于多少？
22 - 21 = 1
22减法21 等于 1
竖式演算
验算
- 用加法验算：1 + 21 = 22
相关题目
22 - 20 = 2
22 - 22 = 0
22 - 19 = 3
22 - 18 = 4
22 - 17 = 5
22 - 16 = 6
22 - 15 = 7
22 - 14 = 8
21 - 21 = 0
23 - 21 = 2
24 - 21 = 3
25 - 21 = 4
26 - 21 = 5
27 - 21 = 6
28 - 21 = 7
29 - 21 = 8
2 - 1 = 1
3 - 2 = 1
4 - 3 = 1
5 - 4 = 1
6 - 5 = 1
7 - 6 = 1
57 - 35 = 22
67 - 1 = 66
96 - 15 = 81
53 - 13 = 40
69 - 21 = 48
31 - 10 = 21
1 × 1 = 1
65 - 48 = 17