20 加法 45 等于多少？
20 + 45 = 65
20加法45 等于 65
竖式演算
验算
- 用减法验算：65 − 45 = 20
- 用减法验算：65 − 20 = 45
相关题目
20 + 44 = 64
20 + 46 = 66
20 + 47 = 67
20 + 43 = 63
20 + 48 = 68
20 + 42 = 62
20 + 49 = 69
20 + 41 = 61
19 + 45 = 64
21 + 45 = 66
22 + 45 = 67
18 + 45 = 63
23 + 45 = 68
17 + 45 = 62
24 + 45 = 69
16 + 45 = 61
1 + 64 = 65
2 + 63 = 65
3 + 62 = 65
4 + 61 = 65
5 + 60 = 65
6 + 59 = 65
1 + 22 = 23
17 + 1 = 18
60 + 16 = 76
10 + 2 = 12
70 + 7 = 77
7 + 42 = 49
94 - 29 = 65
79 - 14 = 65