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
2 + 5 = 7
44 + 30 = 74
57 + 2 = 59
2 + 32 = 34
3 + 92 = 95
65 + 13 = 78
86 - 21 = 65
13 × 5 = 65