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1.5X0.32X1.25的简便算法

=1.5ⅹ0.4ⅹ(0.8ⅹ1.25)二 =0.6ⅹ1 =0.6

2.5*0.4*0.8*1.25 1*1 1

1.5×0.32×1.25 =(1.5×0.4)×(0.8×1.25) =0.6×1 =0.6 5.24+5.24×99 =5.24×(1+99) =5.24×100 =524 0.8×[13-(3.12+5.28)] =0.8×(13-8.4) =0.8×4.6 =(1-0.2)×4.6 =4.6-0.92 =3.68 7.45×5.2÷2.6 =7.45×(5.2÷2.6) =7.45×2 =14.9

解: 1.25x2.5x0.32 =(1.25*0.8)(2.5*0.4) =1*1 =1

0.5X1.25X32 =0.5X1.25X8X4 =0.5X4X(1.25X8) =2X10 =20

简便计算 25×0.32×1.25 =25x0.4x0.8x1.25 =(25x0.4)x(0.8x1.25) =10x1 =10

解: 1.25✘0.32✘0.25 =1.25*0.08*4*0.25 =0.1*(4*0.25) =0.1

=0.04×8×2.5×1.25 =0.04×2.5×8×1.25 =0.1×10 =1

2.5x0.32x1.25 =(2.5x0.4)x(0.8x1.25) =10x1 =10

=4x0.25x1.25x0.08 =1x0.01 =0.01

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