77 加法 31 等于多少？
77 + 31 = 108
77加法31 等于 108
竖式演算
验算
- 用减法验算：108 − 31 = 77
- 用减法验算：108 − 77 = 31
相关题目
77 + 30 = 107
77 + 32 = 109
77 + 29 = 106
77 + 33 = 110
77 + 28 = 105
77 + 34 = 111
77 + 35 = 112
77 + 27 = 104
76 + 31 = 107
78 + 31 = 109
75 + 31 = 106
79 + 31 = 110
74 + 31 = 105
80 + 31 = 111
73 + 31 = 104
81 + 31 = 112
8 + 100 = 108
9 + 99 = 108
10 + 98 = 108
11 + 97 = 108
12 + 96 = 108
13 + 95 = 108
16 + 67 = 83
8 + 52 = 60
4 + 18 = 22
54 + 6 = 60
58 + 4 = 62
50 + 70 = 120
2 × 54 = 108
18 × 6 = 108