52 减法 40 等于多少?
52 - 40 = 12
52减法40 等于 12
竖式演算
验算
- 用加法验算:12 + 40 = 52
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52 - 39 = 13
52 - 41 = 11
52 - 38 = 14
52 - 42 = 10
52 - 37 = 15
52 - 43 = 9
52 - 44 = 8
52 - 36 = 16
51 - 40 = 11
53 - 40 = 13
50 - 40 = 10
54 - 40 = 14
49 - 40 = 9
55 - 40 = 15
56 - 40 = 16
48 - 40 = 8
13 - 1 = 12
14 - 2 = 12
15 - 3 = 12
16 - 4 = 12
17 - 5 = 12
18 - 6 = 12
99 - 32 = 67
83 - 80 = 3
8 - 4 = 4
55 - 41 = 14
95 - 12 = 83
89 - 54 = 35
3 + 9 = 12
1 × 12 = 12