78 加法 12 等于多少？
78 + 12 = 90
78加法12 等于 90
竖式演算
验算
- 用减法验算：90 − 12 = 78
- 用减法验算：90 − 78 = 12
相关题目
78 + 11 = 89
78 + 13 = 91
78 + 10 = 88
78 + 14 = 92
78 + 15 = 93
78 + 9 = 87
78 + 16 = 94
78 + 8 = 86
77 + 12 = 89
79 + 12 = 91
76 + 12 = 88
80 + 12 = 92
75 + 12 = 87
81 + 12 = 93
74 + 12 = 86
82 + 12 = 94
1 + 89 = 90
2 + 88 = 90
3 + 87 = 90
4 + 86 = 90
5 + 85 = 90
6 + 84 = 90
51 + 29 = 80
92 + 64 = 156
48 + 23 = 71
27 + 45 = 72
49 + 47 = 96
14 + 69 = 83
2 × 45 = 90
97 - 7 = 90