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1.420X40%/(1-40%)=?2.420X1/(1+2/5)3.(420X2/5)/(1+2/5)4.18+28/(1-3/7)5.315/[1X3+(1-1/3)X3]6.315/[1X3+(1+1/3)X3]7.[1-1/(1+25%)]x308.17+(17+28)/(1-2/7)+289.40-16%X40/20%10.(1-1/5)X5/8+5/8

题目详情
1.420X40%/(1-40%)=?
2.420X1/(1+2/5)
3.(420X2/5)/(1+2/5)
4.18+28/(1-3/7)
5.315/[1X3+(1-1/3)X3]
6.315/[1X3+(1+1/3)X3]
7.[1-1/(1+25%)]x30
8.17+(17+28)/(1-2/7)+28
9.40-16%X40/20%
10.(1-1/5)X5/8+5/8
▼优质解答
答案和解析
1.280
2.300
3.120
4.80.5
5.63
6.45
7.-7.5
8.108
9.8
10.9/8.
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