20 加法 59 等于多少？
20 + 59 = 79
20加法59 等于 79
竖式演算
验算
- 用减法验算：79 − 59 = 20
- 用减法验算：79 − 20 = 59
相关题目
20 + 58 = 78
20 + 60 = 80
20 + 57 = 77
20 + 61 = 81
20 + 56 = 76
20 + 62 = 82
20 + 55 = 75
20 + 63 = 83
19 + 59 = 78
21 + 59 = 80
22 + 59 = 81
18 + 59 = 77
23 + 59 = 82
17 + 59 = 76
24 + 59 = 83
16 + 59 = 75
1 + 78 = 79
2 + 77 = 79
3 + 76 = 79
4 + 75 = 79
5 + 74 = 79
6 + 73 = 79
100 + 75 = 175
36 + 53 = 89
100 + 24 = 124
37 + 2 = 39
14 + 42 = 56
11 + 28 = 39
98 - 19 = 79
100 - 21 = 79