50 减法 22 等于多少？
50 - 22 = 28
50减法22 等于 28
竖式演算
验算
- 用加法验算：28 + 22 = 50
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50 - 21 = 29
50 - 23 = 27
50 - 20 = 30
50 - 24 = 26
50 - 19 = 31
50 - 25 = 25
50 - 26 = 24
50 - 18 = 32
49 - 22 = 27
51 - 22 = 29
52 - 22 = 30
48 - 22 = 26
53 - 22 = 31
47 - 22 = 25
54 - 22 = 32
46 - 22 = 24
29 - 1 = 28
30 - 2 = 28
31 - 3 = 28
32 - 4 = 28
33 - 5 = 28
34 - 6 = 28
77 - 8 = 69
60 - 33 = 27
96 - 8 = 88
73 - 46 = 27
72 - 45 = 27
65 - 56 = 9
23 + 5 = 28
4 × 7 = 28