2.8*(2.8-0.2)/14% 怎么算?

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2.8*(2.8-0.2)/14% 怎么算?
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2.8*(2.8-0.2)/14% 怎么算?
2.8*(2.8-0.2)/14% 怎么算?

2.8*(2.8-0.2)/14% 怎么算?
2.8*(2.8-0.2)/14%
=2.8*(2.8-0.2)/0.14
=2.8*2.6/0.14
=7.28/0.14
=52

2.8*(2.8-0.2)/14%
=2.8*2.6/0.14
=280*2.6/14
=14*20*2.6/14
=20*2.6
=52