3 加法 27 等于多少？
3 + 27 = 30
3加法27 等于 30
竖式演算
验算
- 用减法验算：30 − 27 = 3
- 用减法验算：30 − 3 = 27
相关题目
3 + 26 = 29
3 + 28 = 31
3 + 29 = 32
3 + 25 = 28
3 + 30 = 33
3 + 24 = 27
3 + 31 = 34
3 + 23 = 26
2 + 27 = 29
4 + 27 = 31
1 + 27 = 28
5 + 27 = 32
6 + 27 = 33
7 + 27 = 34
8 + 27 = 35
9 + 27 = 36
1 + 29 = 30
2 + 28 = 30
4 + 26 = 30
5 + 25 = 30
6 + 24 = 30
7 + 23 = 30
75 + 71 = 146
65 + 41 = 106
39 + 31 = 70
17 + 7 = 24
59 + 33 = 92
91 + 72 = 163
50 - 20 = 30
58 - 28 = 30