40 加法 20 等于多少?
40 + 20 = 60
40加法20 等于 60
竖式演算
验算
- 用减法验算:60 − 20 = 40
- 用减法验算:60 − 40 = 20
相关题目
40 + 19 = 59
40 + 21 = 61
40 + 22 = 62
40 + 18 = 58
40 + 23 = 63
40 + 17 = 57
40 + 24 = 64
40 + 16 = 56
39 + 20 = 59
41 + 20 = 61
38 + 20 = 58
42 + 20 = 62
37 + 20 = 57
43 + 20 = 63
44 + 20 = 64
36 + 20 = 56
1 + 59 = 60
2 + 58 = 60
3 + 57 = 60
4 + 56 = 60
5 + 55 = 60
6 + 54 = 60
54 + 12 = 66
22 + 33 = 55
24 + 30 = 54
75 + 23 = 98
3 + 32 = 35
40 + 45 = 85
100 - 40 = 60
5 × 12 = 60