12 加法 72 等于多少？
12 + 72 = 84
12加法72 等于 84
竖式演算
验算
- 用减法验算：84 − 72 = 12
- 用减法验算：84 − 12 = 72
相关题目
12 + 71 = 83
12 + 73 = 85
12 + 74 = 86
12 + 70 = 82
12 + 75 = 87
12 + 69 = 81
12 + 76 = 88
12 + 68 = 80
11 + 72 = 83
13 + 72 = 85
10 + 72 = 82
14 + 72 = 86
15 + 72 = 87
9 + 72 = 81
16 + 72 = 88
8 + 72 = 80
1 + 83 = 84
2 + 82 = 84
3 + 81 = 84
4 + 80 = 84
5 + 79 = 84
6 + 78 = 84
2 + 2 = 4
26 + 3 = 29
50 + 31 = 81
43 + 24 = 67
13 + 3 = 16
74 + 5 = 79
93 - 9 = 84
97 - 13 = 84