21 减法 13 等于多少？
21 - 13 = 8
21减法13 等于 8
竖式演算
验算
- 用加法验算：8 + 13 = 21
相关题目
21 - 12 = 9
21 - 14 = 7
21 - 11 = 10
21 - 15 = 6
21 - 10 = 11
21 - 16 = 5
21 - 9 = 12
21 - 17 = 4
20 - 13 = 7
22 - 13 = 9
23 - 13 = 10
19 - 13 = 6
24 - 13 = 11
18 - 13 = 5
25 - 13 = 12
17 - 13 = 4
9 - 1 = 8
10 - 2 = 8
11 - 3 = 8
12 - 4 = 8
13 - 5 = 8
14 - 6 = 8
65 - 17 = 48
44 - 38 = 6
96 - 59 = 37
84 - 39 = 45
87 - 9 = 78
52 - 48 = 4
3 + 5 = 8
8 × 1 = 8