53 加法 21 等于多少？
53 + 21 = 74
53加法21 等于 74
竖式演算
验算
- 用减法验算：74 − 21 = 53
- 用减法验算：74 − 53 = 21
相关题目
53 + 20 = 73
53 + 22 = 75
53 + 19 = 72
53 + 23 = 76
53 + 24 = 77
53 + 18 = 71
53 + 25 = 78
53 + 17 = 70
52 + 21 = 73
54 + 21 = 75
51 + 21 = 72
55 + 21 = 76
56 + 21 = 77
50 + 21 = 71
57 + 21 = 78
49 + 21 = 70
1 + 73 = 74
2 + 72 = 74
3 + 71 = 74
4 + 70 = 74
5 + 69 = 74
6 + 68 = 74
84 + 15 = 99
5 + 64 = 69
7 + 72 = 79
4 + 24 = 28
76 + 11 = 87
52 + 32 = 84
2 × 37 = 74
1 × 74 = 74