2 加法 20 等于多少?
2 + 20 = 22
2加法20 等于 22
竖式演算
验算
- 用减法验算:22 − 20 = 2
- 用减法验算:22 − 2 = 20
相关题目
2 + 19 = 21
2 + 21 = 23
2 + 22 = 24
2 + 18 = 20
2 + 23 = 25
2 + 17 = 19
2 + 24 = 26
2 + 16 = 18
1 + 20 = 21
3 + 20 = 23
4 + 20 = 24
5 + 20 = 25
6 + 20 = 26
7 + 20 = 27
8 + 20 = 28
9 + 20 = 29
1 + 21 = 22
3 + 19 = 22
4 + 18 = 22
5 + 17 = 22
6 + 16 = 22
7 + 15 = 22
46 + 52 = 98
33 + 35 = 68
22 + 4 = 26
18 + 100 = 118
56 + 3 = 59
23 + 74 = 97
32 - 10 = 22
80 - 58 = 22