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0.25×12.5×3.2简便运算

0.25*12.5*3.2=0.25*12.5*(4*0.8)=0.25*12.5*4*0.8=(0.25*4)*(12.5*0.8)=1*10=10 希望对你有帮助.

0.25*3.2*12.5=0.25*4*(0.8*12.5)=1*10=10

2.5*3.2*12.5 =(2.5*0.4)*(8*12.5) =1*100 =100

解:12.5x3.2x0.25=12.5x8x0.4x0.25=100x0.1=10亲,请您点击【采纳答案】,您的采纳是我答题的动力,谢谢.

12.5*0.8*0.25*4=10*1=10

12.5x0.25x3.2 =12.5x0.25x0.4x8 =(12.5x8)x(0.25x0.4) =100x0.1 =10 12.5x4.5+4.5x12.5+12.5 =12.5x(4.5+4.5+1) =12.5x10 =125 所谓的简便算法,就是凑成整十整百的数.如25与4,125与8等然后把数字拆开来计算

12.5x0.25x3.2=(12.5*0.8)x(0.25x4)=10*1=10

12.5*0.25*3.2=12.5*0.25*0.8*4=12.5*0.8*0.25*4=10*1=10

=0.25*4*0.8*12.5=10

解:12.5*3.2*0.25 =12.5x0.8x(4x0.25) =10x1 =10

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