21 加法 33 等于多少？
21 + 33 = 54
21加法33 等于 54
竖式演算
验算
- 用减法验算：54 − 33 = 21
- 用减法验算：54 − 21 = 33
相关题目
21 + 32 = 53
21 + 34 = 55
21 + 31 = 52
21 + 35 = 56
21 + 30 = 51
21 + 36 = 57
21 + 29 = 50
21 + 37 = 58
20 + 33 = 53
22 + 33 = 55
19 + 33 = 52
23 + 33 = 56
24 + 33 = 57
18 + 33 = 51
25 + 33 = 58
17 + 33 = 50
1 + 53 = 54
2 + 52 = 54
3 + 51 = 54
4 + 50 = 54
5 + 49 = 54
6 + 48 = 54
13 + 46 = 59
38 + 31 = 69
55 + 10 = 65
2 + 34 = 36
20 + 15 = 35
11 + 45 = 56
73 - 19 = 54
90 - 36 = 54