21 加法 53 等于多少？
21 + 53 = 74
21加法53 等于 74
竖式演算
验算
- 用减法验算：74 − 53 = 21
- 用减法验算：74 − 21 = 53
相关题目
21 + 52 = 73
21 + 54 = 75
21 + 51 = 72
21 + 55 = 76
21 + 56 = 77
21 + 50 = 71
21 + 57 = 78
21 + 49 = 70
20 + 53 = 73
22 + 53 = 75
19 + 53 = 72
23 + 53 = 76
24 + 53 = 77
18 + 53 = 71
25 + 53 = 78
17 + 53 = 70
1 + 73 = 74
2 + 72 = 74
3 + 71 = 74
4 + 70 = 74
5 + 69 = 74
6 + 68 = 74
12 + 73 = 85
17 + 52 = 69
32 + 25 = 57
32 + 66 = 98
5 + 13 = 18
33 + 34 = 67
88 - 14 = 74
99 - 25 = 74