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
92 + 97 = 189
3 + 49 = 52
58 + 7 = 65
12 + 95 = 107
20 + 99 = 119
53 + 86 = 139
91 - 1 = 90
99 - 9 = 90