www.gsyw.net > 46.5x43.5+4.35x285%x43.5= 求简算过程

46.5x43.5+4.35x285%x43.5= 求简算过程

=46.5*43.5+43.5*28.5-25*43.5=43.5*(46.5+28.5-25)=43.5*50=2175

46.5*43.5+4.35*285-25*43.5=46.5*43.5+43.5*28.5-25*43.5=(46.5+28.5-25)*43.5=50*43.5=100*43.5÷2=4350÷2=2175

46.5x43.5+43.5x27.5-25x43.5=43.5x(46.5+27.5-25)=43.5x(50-1)=43.5x50-43.5=2175-43.5=2131.5

4.35*7.6+43.5*0.24=4.35*7.6+4.35*2.4=4.35*(7.6+2.4)=4.35*10=43.5

46.5*43.5+4.35*275-2.4*435=46.5*43.5+43.5*27.5-24*43.5=43.5*(46.5+27.5-24)=43.5*50=2175

4.35x0.2+43.5x8=4.35x0.2+4.35x10x8=4.35x(0.2+80)=4.35x80+4.35x0.2=348+0.87=348.87

简便计算如下:4.35*3.6一0.35*43.5=43.5*0.36-0.35*43.5=43.5*(0.36-0.35)=43.5*0.01=0.435

43.5*6.7+4.35*33=43.5*6.7+43.5*3.3=43.5*(6.7+3.3)=43.5*10=435

46.510.1+5.35=46.5x10+46.5x0.1+5.35 =465十(4.65+5.35) =465+10 =475

解:原式=4.35x4x0.07=17.4x0.7=12.18分析:主要考察拆分法和结合律的运用.

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