28 加法 9 等于多少？
28 + 9 = 37
28加法9 等于 37
竖式演算
验算
- 用减法验算：37 − 9 = 28
- 用减法验算：37 − 28 = 9
相关题目
28 + 8 = 36
28 + 10 = 38
28 + 11 = 39
28 + 7 = 35
28 + 12 = 40
28 + 6 = 34
28 + 13 = 41
28 + 5 = 33
29 + 9 = 38
27 + 9 = 36
30 + 9 = 39
26 + 9 = 35
31 + 9 = 40
25 + 9 = 34
32 + 9 = 41
24 + 9 = 33
1 + 36 = 37
2 + 35 = 37
3 + 34 = 37
4 + 33 = 37
5 + 32 = 37
6 + 31 = 37
64 + 28 = 92
15 + 5 = 20
65 + 50 = 115
35 + 36 = 71
48 + 80 = 128
36 + 34 = 70
65 - 28 = 37
72 - 35 = 37