38 减法 21 等于多少?
38 - 21 = 17
38减法21 等于 17
竖式演算
验算
- 用加法验算:17 + 21 = 38
相关题目
38 - 20 = 18
38 - 22 = 16
38 - 19 = 19
38 - 23 = 15
38 - 24 = 14
38 - 18 = 20
38 - 25 = 13
38 - 17 = 21
37 - 21 = 16
39 - 21 = 18
40 - 21 = 19
36 - 21 = 15
41 - 21 = 20
35 - 21 = 14
42 - 21 = 21
34 - 21 = 13
18 - 1 = 17
19 - 2 = 17
20 - 3 = 17
21 - 4 = 17
22 - 5 = 17
23 - 6 = 17
69 - 3 = 66
37 - 30 = 7
99 - 87 = 12
89 - 59 = 30
84 - 50 = 34
69 - 54 = 15
8 + 9 = 17
17 × 1 = 17