计算(125+1.25+12.5+0.125)*8的简便方法

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(125+1.25+12.5+0.125)*8
=125*8+1.25*8+12.5*8+0.125*8
=1000+10+100+1
=1111

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125*8+1.25*8+12.5*8+0.125*8=1000+10+100+1=1111

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(125+1.25+12.5+0.125)*8
=125*8+1.25*8+12.5*8+0.125*8
=1000+10+100+1
=1111
逐个的物瞎敬乘罩慎最简单神哗

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=125*8*(1+0.1+0.01)=1000*1.11=1110

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1110

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