20 减法 2 等于多少?
20 - 2 = 18
20减法2 等于 18
竖式演算
验算
- 用加法验算:18 + 2 = 20
相关题目
20 - 1 = 19
20 - 3 = 17
20 - 4 = 16
20 - 5 = 15
20 - 6 = 14
20 - 7 = 13
20 - 8 = 12
20 - 9 = 11
21 - 2 = 19
19 - 2 = 17
22 - 2 = 20
18 - 2 = 16
23 - 2 = 21
17 - 2 = 15
24 - 2 = 22
16 - 2 = 14
19 - 1 = 18
21 - 3 = 18
22 - 4 = 18
23 - 5 = 18
24 - 6 = 18
25 - 7 = 18
72 - 19 = 53
41 - 3 = 38
94 - 29 = 65
63 - 29 = 34
55 - 9 = 46
92 - 9 = 83
18 × 1 = 18
17 + 1 = 18