20 加法 60 等于多少？
20 + 60 = 80
20加法60 等于 80
竖式演算
验算
- 用减法验算：80 − 60 = 20
- 用减法验算：80 − 20 = 60
相关题目
20 + 59 = 79
20 + 61 = 81
20 + 58 = 78
20 + 62 = 82
20 + 57 = 77
20 + 63 = 83
20 + 56 = 76
20 + 64 = 84
19 + 60 = 79
21 + 60 = 81
22 + 60 = 82
18 + 60 = 78
23 + 60 = 83
17 + 60 = 77
24 + 60 = 84
16 + 60 = 76
1 + 79 = 80
2 + 78 = 80
3 + 77 = 80
4 + 76 = 80
5 + 75 = 80
6 + 74 = 80
73 + 2 = 75
67 + 20 = 87
97 + 1 = 98
42 + 5 = 47
21 + 64 = 85
45 + 34 = 79
89 - 9 = 80
20 × 4 = 80