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简便计算125x25x(8十40)求解

125x25x(8十40)求解 125x25x(8十40) =(125*8*25)+(125*25*40) =25*1000+125*1000 =25000+125000 =15000

125×(8+40)×25 =125×8×25+125×40×25 =(125×8)×25+125×(40×25) =1000×25+125×1000 =1000×(25+125) =1000×150 =150000

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