24 减法 21 等于多少？
24 - 21 = 3
24减法21 等于 3
竖式演算
验算
- 用加法验算：3 + 21 = 24
相关题目
24 - 20 = 4
24 - 22 = 2
24 - 19 = 5
24 - 23 = 1
24 - 18 = 6
24 - 24 = 0
24 - 17 = 7
24 - 16 = 8
23 - 21 = 2
25 - 21 = 4
22 - 21 = 1
26 - 21 = 5
21 - 21 = 0
27 - 21 = 6
28 - 21 = 7
29 - 21 = 8
4 - 1 = 3
5 - 2 = 3
6 - 3 = 3
7 - 4 = 3
8 - 5 = 3
9 - 6 = 3
79 - 4 = 75
99 - 6 = 93
77 - 27 = 50
60 - 10 = 50
84 - 64 = 20
86 - 11 = 75
1 × 3 = 3
3 × 1 = 3