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1.25x3.2x0.25这题怎样简便计算。

=1.25*0.8*(4*25) =1*100 =100

你好!1.25x3.2x0.25=1.25x8x0.4x0.25=10x0.1=1 0.29x102=0.29x(100+2)=0.29x100+0.29x2=29+0.58=29.58如有疑问,请追问.

0.25x3.2x1.25=(0.25*4)*(0.8*1.25)=1*1=1

1.7-1.7x0.2÷6.8 =(1.7x6.8-1.7x0.2)÷6.8 =1.7x6.6÷6.8 =1.7x6.6÷(1.7x4)=1.651.25x3.2x0.25=1.25x0.8x4x0.25=(1.25x0.8)x(4x0.25)=1x1=14.65x5.4+5.4x5.35=(4.65+5.35)x5.4=10x5.4=549.4÷{(1.3+1.4)÷0.27]=

1.25x3.2x2.5=1.25x8x0.4x2.5=10x1=10

1.25x3.2x2.5=1.25x8x0.4x2.5=10x1=10 (12.5-0.25)x8=12.5x8-0.25x8=100-2=98 2.6x(3.4+2.7)=2.6x(5+1.1)=2.6x5+2.6x1.1=13+2.86=15.86

1.25*0.25*3.2= 1.25*0.25*4*0.8= (1.25*0.8)*(0.25*4)= 1*1= 1

0.25x3.2x1.25=0.25*4*0.8*1.25=1*1=1

0.25*3.2*1.25=0.25*4*0.8*1.25=(0.25*4)*(0.8*1.25)=1*1=1

12.5x0.25x3.2=12.5*0.25*0.8*4=(12.5*0.8)*(0.25*4)=10*1=10 12.5x4.5+4.5x12.5+12.5=12.5*(4.5+4.5+1)=12.5*10=12.5

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