9 加法 72 等于多少？
9 + 72 = 81
9加法72 等于 81
竖式演算
验算
- 用减法验算：81 − 72 = 9
- 用减法验算：81 − 9 = 72
相关题目
9 + 71 = 80
9 + 73 = 82
9 + 74 = 83
9 + 70 = 79
9 + 75 = 84
9 + 69 = 78
9 + 76 = 85
9 + 68 = 77
8 + 72 = 80
10 + 72 = 82
11 + 72 = 83
7 + 72 = 79
12 + 72 = 84
6 + 72 = 78
13 + 72 = 85
5 + 72 = 77
1 + 80 = 81
2 + 79 = 81
3 + 78 = 81
4 + 77 = 81
5 + 76 = 81
6 + 75 = 81
61 + 67 = 128
66 + 43 = 109
82 + 56 = 138
90 + 45 = 135
73 + 66 = 139
45 + 73 = 118
99 - 18 = 81
89 - 8 = 81