11 加法 10 等于多少？
11 + 10 = 21
11加法10 等于 21
竖式演算
验算
- 用减法验算：21 − 10 = 11
- 用减法验算：21 − 11 = 10
相关题目
11 + 11 = 22
11 + 9 = 20
11 + 12 = 23
11 + 8 = 19
11 + 13 = 24
11 + 7 = 18
11 + 14 = 25
11 + 6 = 17
10 + 10 = 20
12 + 10 = 22
13 + 10 = 23
9 + 10 = 19
14 + 10 = 24
8 + 10 = 18
15 + 10 = 25
7 + 10 = 17
1 + 20 = 21
2 + 19 = 21
3 + 18 = 21
4 + 17 = 21
5 + 16 = 21
6 + 15 = 21
93 + 5 = 98
12 + 30 = 42
20 + 78 = 98
86 + 2 = 88
12 + 35 = 47
56 + 21 = 77
1 × 21 = 21
29 - 8 = 21