58 加法 20 等于多少?
58 + 20 = 78
58加法20 等于 78
竖式演算
验算
- 用减法验算:78 − 20 = 58
- 用减法验算:78 − 58 = 20
相关题目
58 + 19 = 77
58 + 21 = 79
58 + 22 = 80
58 + 18 = 76
58 + 23 = 81
58 + 17 = 75
58 + 24 = 82
58 + 16 = 74
57 + 20 = 77
59 + 20 = 79
56 + 20 = 76
60 + 20 = 80
55 + 20 = 75
61 + 20 = 81
62 + 20 = 82
54 + 20 = 74
1 + 77 = 78
2 + 76 = 78
3 + 75 = 78
4 + 74 = 78
5 + 73 = 78
6 + 72 = 78
62 + 27 = 89
35 + 14 = 49
35 + 41 = 76
31 + 25 = 56
34 + 11 = 45
2 + 35 = 37
26 × 3 = 78
98 - 20 = 78