77 加法 13 等于多少？
77 + 13 = 90
77加法13 等于 90
竖式演算
验算
- 用减法验算：90 − 13 = 77
- 用减法验算：90 − 77 = 13
相关题目
77 + 12 = 89
77 + 14 = 91
77 + 11 = 88
77 + 15 = 92
77 + 10 = 87
77 + 16 = 93
77 + 17 = 94
77 + 9 = 86
76 + 13 = 89
78 + 13 = 91
75 + 13 = 88
79 + 13 = 92
74 + 13 = 87
80 + 13 = 93
73 + 13 = 86
81 + 13 = 94
1 + 89 = 90
2 + 88 = 90
3 + 87 = 90
4 + 86 = 90
5 + 85 = 90
6 + 84 = 90
41 + 96 = 137
88 + 41 = 129
82 + 65 = 147
86 + 31 = 117
60 + 86 = 146
7 + 44 = 51
6 × 15 = 90
10 × 9 = 90