13 加法 77 等于多少？
13 + 77 = 90
13加法77 等于 90
竖式演算
验算
- 用减法验算：90 − 77 = 13
- 用减法验算：90 − 13 = 77
相关题目
13 + 76 = 89
13 + 78 = 91
13 + 75 = 88
13 + 79 = 92
13 + 74 = 87
13 + 80 = 93
13 + 73 = 86
13 + 81 = 94
12 + 77 = 89
14 + 77 = 91
11 + 77 = 88
15 + 77 = 92
10 + 77 = 87
16 + 77 = 93
17 + 77 = 94
9 + 77 = 86
1 + 89 = 90
2 + 88 = 90
3 + 87 = 90
4 + 86 = 90
5 + 85 = 90
6 + 84 = 90
86 + 83 = 169
9 + 52 = 61
49 + 21 = 70
80 + 42 = 122
51 + 76 = 127
15 + 17 = 32
90 × 1 = 90
96 - 6 = 90