52 减法 49 等于多少?
52 - 49 = 3
52减法49 等于 3
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验算
- 用加法验算:3 + 49 = 52
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52 - 48 = 4
52 - 50 = 2
52 - 47 = 5
52 - 51 = 1
52 - 46 = 6
52 - 52 = 0
52 - 45 = 7
52 - 44 = 8
51 - 49 = 2
53 - 49 = 4
50 - 49 = 1
54 - 49 = 5
49 - 49 = 0
55 - 49 = 6
56 - 49 = 7
57 - 49 = 8
4 - 1 = 3
5 - 2 = 3
6 - 3 = 3
7 - 4 = 3
8 - 5 = 3
9 - 6 = 3
70 - 49 = 21
71 - 43 = 28
91 - 87 = 4
80 - 76 = 4
94 - 85 = 9
1 × 3 = 3
2 + 1 = 3
1 + 2 = 3