(0.37×2400×0.25+3×8+28.25÷)÷.
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解:(0.37×2400×0.25+3×8+28.25÷)÷
=(0.37×6×400×0.25+3×8.75+28.25×3)÷
=[0.37×6×(400×0.25)+(8.75+28.25)×3]×,
=[0.37×6×100+37×3]×,
=[37×6+37×3]×,
=[(6+3)×37]×,
=9×37×,
=37×11,
=37×(10+1),
=37×10+37,
=370+37,
=407.
解析分析:式中的0.37×2400×0.25可将2400拆分为6×400后根据乘法结合律计算,3×8+28.25÷可将式中的分数化为小数,将除法算式转化为乘法算式后根据法分配律计算.
点评:此算式较长,数据较多,因此计算时要细心分析式中数据,运用合适的方法进行计算.