4 加法 30 等于多少？
4 + 30 = 34
4加法30 等于 34
竖式演算
验算
- 用减法验算：34 − 30 = 4
- 用减法验算：34 − 4 = 30
相关题目
4 + 29 = 33
4 + 31 = 35
4 + 28 = 32
4 + 32 = 36
4 + 33 = 37
4 + 27 = 31
4 + 34 = 38
4 + 26 = 30
3 + 30 = 33
5 + 30 = 35
2 + 30 = 32
6 + 30 = 36
1 + 30 = 31
7 + 30 = 37
8 + 30 = 38
9 + 30 = 39
1 + 33 = 34
2 + 32 = 34
3 + 31 = 34
5 + 29 = 34
6 + 28 = 34
7 + 27 = 34
90 + 5 = 95
63 + 36 = 99
26 + 63 = 89
88 + 100 = 188
1 + 48 = 49
8 + 81 = 89
34 × 1 = 34
40 - 6 = 34