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1.25x0.32x2.5+2.5的简便方法

1.25x0.32x2.5+2.5 =1.25x0.8x0.4x2.5+2.5 =1.25x0.8x(0.4x2.5)+2.5 =1+2.5 =3.5

2.5*0.4*0.8*1.25 1*1 1

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

能简便的简便 1.25×0.32×2.5 =(1.25×0.8)×(0.4×2.5) =1×1 =1

第一个40*2.5-0.4*2.5就好第二个就是(99+1)*0.32第三个就是1.25*0.8*9.7就好第四个的话好像是4.86/(1.2-1)第四个不是很确定

1.25×0.32×250最简方法做 =(1.25×8)×(0.04×250) =10×10 =100

这种题就要是凑整十,整百,25×4=100和125×8=1000是两个较常用的算式,所以原式可以如下简算 原式=2.5×1.25×0.4×0.8 =2.5×0.4×(1.25×0.8) =1×1=1

原式=1.25x8x4x2.5 =(1.25x8)x(2.5x4) =10x10 =100

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

1.25×0.32×8 =(1.25x8)x0.32 =10x0.32 =3.2 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!! 朋友,请【采纳答案】,您的采纳是我答题的动力,如果没有明白,请追问。谢谢。

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