2 加法 2 等于多少?
2 + 2 = 4
2加法2 等于 4
竖式演算
验算
- 用减法验算:4 − 2 = 2
- 用减法验算:4 − 2 = 2
相关题目
2 + 1 = 3
2 + 3 = 5
2 + 4 = 6
2 + 5 = 7
2 + 6 = 8
2 + 7 = 9
2 + 8 = 10
2 + 9 = 11
1 + 2 = 3
3 + 2 = 5
4 + 2 = 6
5 + 2 = 7
6 + 2 = 8
7 + 2 = 9
8 + 2 = 10
9 + 2 = 11
1 + 3 = 4
3 + 1 = 4
2 + 21 = 23
20 + 41 = 61
37 + 60 = 97
91 + 4 = 95
32 + 46 = 78
32 + 5 = 37
32 - 28 = 4
6 - 2 = 4
45 - 41 = 4
89 - 85 = 4
33 + 30 = 63
69 + 61 = 130