75*0.82+2.5*8.2简便运算 13.75+45÷1.8*25 12.5*4.8÷1.5÷5

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75*0.82+2.5*8.2简便运算 13.75+45÷1.8*25 12.5*4.8÷1.5÷5
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75*0.82+2.5*8.2简便运算 13.75+45÷1.8*25 12.5*4.8÷1.5÷5
75*0.82+2.5*8.2简便运算 13.75+45÷1.8*25 12.5*4.8÷1.5÷5

75*0.82+2.5*8.2简便运算 13.75+45÷1.8*25 12.5*4.8÷1.5÷5
75*0.82+2.5*0.82*10=0.82*(75+25)后面那题没看懂