93.6÷〔（6﹣2.88）×（ ﹣1.875）〕

7.05×37+64×7.05﹣7.05        

÷〔7.8+ ×（2.75+1.25）〕

8.1÷（ ）÷ ．

296%×90.4+9.6×2.96={#blank#}1{#/blank#}   ={#blank#}2{#/blank#}  4×7.25×25%+2.25={#blank#}3{#/blank#}

①2.5×4.4={#blank#}1{#/blank#}×{#blank#}2{#/blank#}×{#blank#}3{#/blank#}

②2.5×4.4={#blank#}4{#/blank#}×{#blank#}5{#/blank#}+{#blank#}6{#/blank#}×{#blank#}7{#/blank#}

①

②

③

④

⑤

⑥54.3×1.8+54.3×0.3﹣54.3×0.1

36×（）                 7.5×8.79+87.9×0.25

32.14+64.28×0.5375×0.25+0.5375×64.28×0.75-8×64.28×0.125×0.5375