27 减法 20 等于多少?
27 - 20 = 7
27减法20 等于 7
竖式演算
验算
- 用加法验算:7 + 20 = 27
相关题目
27 - 19 = 8
27 - 21 = 6
27 - 22 = 5
27 - 18 = 9
27 - 23 = 4
27 - 17 = 10
27 - 24 = 3
27 - 16 = 11
26 - 20 = 6
28 - 20 = 8
25 - 20 = 5
29 - 20 = 9
30 - 20 = 10
24 - 20 = 4
31 - 20 = 11
23 - 20 = 3
8 - 1 = 7
9 - 2 = 7
10 - 3 = 7
11 - 4 = 7
12 - 5 = 7
13 - 6 = 7
89 - 10 = 79
70 - 10 = 60
48 - 15 = 33
72 - 30 = 42
47 - 10 = 37
61 - 51 = 10
1 + 6 = 7
2 + 5 = 7