72 加法 21 等于多少？
72 + 21 = 93
72加法21 等于 93
竖式演算
验算
- 用减法验算：93 − 21 = 72
- 用减法验算：93 − 72 = 21
相关题目
72 + 20 = 92
72 + 22 = 94
72 + 19 = 91
72 + 23 = 95
72 + 24 = 96
72 + 18 = 90
72 + 25 = 97
72 + 17 = 89
71 + 21 = 92
73 + 21 = 94
74 + 21 = 95
70 + 21 = 91
75 + 21 = 96
69 + 21 = 90
76 + 21 = 97
68 + 21 = 89
1 + 92 = 93
2 + 91 = 93
3 + 90 = 93
4 + 89 = 93
5 + 88 = 93
6 + 87 = 93
38 + 60 = 98
50 + 31 = 81
51 + 21 = 72
35 + 61 = 96
25 + 51 = 76
2 + 92 = 94
3 × 31 = 93
100 - 7 = 93