70 减法 50 等于多少?
70 - 50 = 20
70减法50 等于 20
竖式演算
验算
- 用加法验算:20 + 50 = 70
相关题目
70 - 49 = 21
70 - 51 = 19
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70 - 52 = 18
70 - 47 = 23
70 - 53 = 17
70 - 46 = 24
70 - 54 = 16
69 - 50 = 19
71 - 50 = 21
68 - 50 = 18
72 - 50 = 22
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67 - 50 = 17
74 - 50 = 24
66 - 50 = 16
21 - 1 = 20
22 - 2 = 20
23 - 3 = 20
24 - 4 = 20
25 - 5 = 20
26 - 6 = 20
45 - 21 = 24
80 - 70 = 10
75 - 31 = 44
18 - 15 = 3
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11 + 9 = 20
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16 + 4 = 20