17.68÷5+17.68÷0.2+3.7×1+3.7×0.5
=17.68×2÷10+17.68÷（1/5）+3.7×1+3.7×0.5=35.36÷10+17.68×5+3.7+1.85
=3.536+17.68×10÷2+5.55
=3.536+176.8÷2+5.55
=3.536+88.4+5.55
=91.936+5.55
=97.486可奥，我以为没人会解，没想到还有个勤劳的人...没验算，你自己按思路再算一遍吧昂...好吧