20 减法 3 等于多少?
20 - 3 = 17
20减法3 等于 17
竖式演算
验算
- 用加法验算:17 + 3 = 20
相关题目
20 - 2 = 18
20 - 4 = 16
20 - 1 = 19
20 - 5 = 15
20 - 6 = 14
20 - 7 = 13
20 - 8 = 12
20 - 9 = 11
19 - 3 = 16
21 - 3 = 18
22 - 3 = 19
18 - 3 = 15
23 - 3 = 20
17 - 3 = 14
24 - 3 = 21
16 - 3 = 13
18 - 1 = 17
19 - 2 = 17
21 - 4 = 17
22 - 5 = 17
23 - 6 = 17
24 - 7 = 17
65 - 49 = 16
50 - 49 = 1
63 - 34 = 29
51 - 42 = 9
71 - 12 = 59
41 - 2 = 39
8 + 9 = 17
1 × 17 = 17