60 加法 20 等于多少？
60 + 20 = 80
60加法20 等于 80
竖式演算
验算
- 用减法验算：80 − 20 = 60
- 用减法验算：80 − 60 = 20
相关题目
60 + 19 = 79
60 + 21 = 81
60 + 22 = 82
60 + 18 = 78
60 + 23 = 83
60 + 17 = 77
60 + 24 = 84
60 + 16 = 76
59 + 20 = 79
61 + 20 = 81
58 + 20 = 78
62 + 20 = 82
57 + 20 = 77
63 + 20 = 83
56 + 20 = 76
64 + 20 = 84
1 + 79 = 80
2 + 78 = 80
3 + 77 = 80
4 + 76 = 80
5 + 75 = 80
6 + 74 = 80
65 + 4 = 69
35 + 21 = 56
81 + 12 = 93
24 + 71 = 95
17 + 81 = 98
20 + 52 = 72
5 × 16 = 80
1 × 80 = 80