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0.125 45.5 8简便计算

0.125*8*45.5=1*45.5=45.5乘法交换律再看看别人怎么说的.

先算0.125x8=1再乘3.3=3.3

=1.25*8*3.7=1*3.7=3.7

解答如下:简便计算的思路是,首先计算0.125X8,然后再乘以2.5即可0.125x2.5x8=(0.125X8)X2.5=1X2.5=2.5

12.95÷0.125=12.95÷1/8=12.95x8=(13-0.05)x8=13x8-0.05x8=104-0.4=103.6

你好:0.125=1/80.125x8=1/8x8=1你好:0.125x8=(0.1+0.02+0.005)x8=0.1x8+0.02x8+0.005x8=0.8+0.16+0.04=1

0.125=1/8原式=2.78*8÷8=2.78

0.125*8.8=0.125*(8+0.8)=0.125*8+0.125*0.8=1+0.1=1.1

0.125x8.8 =0.125*8*1.1 =1*1.1 =1.1

2.95x0.125x8=2.95x(0.125x8)=2.95*1=2.95

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