(0.36×74.3-0.257×64+25.7)÷3×150简便计算
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(0.36×74.3-0.257×64+25.7)÷3×150
=[0.36×74.3-(25.7×0.64-25.7)]÷3×150
=[0.36×74.3-25.7×(0.64-1)]÷3×150
=[0.36×74.3+25.7×0.36]÷3×150
=[0.36×(74.3-25.7)]÷3×150
=[0.36×100]÷3×150
=36÷3×150
=36×50
=1800
=[0.36×74.3-(25.7×0.64-25.7)]÷3×150
=[0.36×74.3-25.7×(0.64-1)]÷3×150
=[0.36×74.3+25.7×0.36]÷3×150
=[0.36×(74.3-25.7)]÷3×150
=[0.36×100]÷3×150
=36÷3×150
=36×50
=1800
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