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12 0.11x0.54简便计算

36.7*0.54 = 19.818 没有太好的简便方法,竖式过程如下:

36.7X0.54=40X0.54-3.3X0.54=5.4X4-3X0.54-0.3X0.54=21.6-1.62-0.162=21.6-1.782=21.6-2+0.218=19.818

(12.5x0.54x1.4)(0.21x25x0.8)=(12.5x2x0.7x0.54)(0.21x25x4x0.2)=(25x0.7x0.54)(0.21x20)=17.5x0.54x4.2=35x2.1x0.54=39.69

2.16*0.54+21.6*0.046=2.16*0.54+2.1*0.46=2.16*(0.54+0.46)=2.16*1=2.16 以上为简便方法,乘法结合律

12.5*0.54+12.5*0.76-1.25*4.1=12.5*(0.54+0.76)-12.5*0.41=12.5*(1.3-0.41)=12.5*0.89=11.125

1.89x0.54=1.0206

上面的式子 = 3.28 x (0.64 - 0.54)= 3.28 x 0.1= 0.328望采纳

先拿4.5*0.54再算

0.54x0.54+0.54x0.46=0.54x(0.54+0.46)=0.54x1=0.54

是0.36X5.4+6.4X0.54吗?=3.6X0.54+6.4X0.54=(3.6+6.4)X0.54=10X0.54=5.4

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