10 加法 80 等于多少？
10 + 80 = 90
10加法80 等于 90
竖式演算
验算
- 用减法验算：90 − 80 = 10
- 用减法验算：90 − 10 = 80
相关题目
10 + 79 = 89
10 + 81 = 91
10 + 78 = 88
10 + 82 = 92
10 + 83 = 93
10 + 77 = 87
10 + 84 = 94
10 + 76 = 86
11 + 80 = 91
9 + 80 = 89
12 + 80 = 92
8 + 80 = 88
13 + 80 = 93
7 + 80 = 87
14 + 80 = 94
6 + 80 = 86
1 + 89 = 90
2 + 88 = 90
3 + 87 = 90
4 + 86 = 90
5 + 85 = 90
6 + 84 = 90
40 + 17 = 57
27 + 62 = 89
25 + 50 = 75
38 + 100 = 138
100 + 5 = 105
50 + 3 = 53
10 × 9 = 90
9 × 10 = 90