33 加法 21 等于多少？
33 + 21 = 54
33加法21 等于 54
竖式演算
验算
- 用减法验算：54 − 21 = 33
- 用减法验算：54 − 33 = 21
相关题目
33 + 20 = 53
33 + 22 = 55
33 + 19 = 52
33 + 23 = 56
33 + 24 = 57
33 + 18 = 51
33 + 25 = 58
33 + 17 = 50
32 + 21 = 53
34 + 21 = 55
31 + 21 = 52
35 + 21 = 56
30 + 21 = 51
36 + 21 = 57
29 + 21 = 50
37 + 21 = 58
1 + 53 = 54
2 + 52 = 54
3 + 51 = 54
4 + 50 = 54
5 + 49 = 54
6 + 48 = 54
6 + 93 = 99
14 + 80 = 94
81 + 12 = 93
12 + 55 = 67
59 + 30 = 89
31 + 15 = 46
3 × 18 = 54
65 - 11 = 54