25 加法 21 等于多少?
25 + 21 = 46
25加法21 等于 46
竖式演算
验算
- 用减法验算:46 − 21 = 25
- 用减法验算:46 − 25 = 21
相关题目
25 + 20 = 45
25 + 22 = 47
25 + 19 = 44
25 + 23 = 48
25 + 24 = 49
25 + 18 = 43
25 + 25 = 50
25 + 17 = 42
24 + 21 = 45
26 + 21 = 47
23 + 21 = 44
27 + 21 = 48
22 + 21 = 43
28 + 21 = 49
29 + 21 = 50
21 + 21 = 42
1 + 45 = 46
2 + 44 = 46
3 + 43 = 46
4 + 42 = 46
5 + 41 = 46
6 + 40 = 46
71 + 8 = 79
50 + 39 = 89
80 + 100 = 180
16 + 33 = 49
17 + 31 = 48
45 + 51 = 96
60 - 14 = 46
68 - 22 = 46