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32x1.25X2.5简便计算

32x1.25X2.5 =4x8x1.25x2.5 =(4x2.5)x(8x1.25) =10x10 =100 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。

32x2.5x1.25 =4x8x2.5x1.25 =(4x2.5)x(8x1.25) =10x10 =100 朋友,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!!! 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。

解:32x1.25等于( 40 ) 32 × 1.25 = 32 × (1×100 + 25)/100 = 32 × 125/100 = 32 × 5/4 = (4 × 8)× 5/4 = 4 × 8 × 5/4 = 4 × 5/4 × 8 = 5 × 8 = 40 答:32x1.25等于40

2.5x32x1.25 =(2.5*30+2.5*2)*1.25 =(75+5)*1.25 =80*1.25 =100

简便计算 2.5x32x1.25 =(2.5×4)×(8×1.25) =10×10 =100 36 .75x99+36.75 =36.75×(99+1) =36.75×100 =3675

3.25X16+32X1.25 =2X16+1.25X16+32X1.25 =32+1.25X(16+32) =32+1.25X8X6 =32+10X6 =32+60 =92

5X1.03X0.2 =(5x0.2)x1.03 =1x1.03 =1.03 32X1.25 =4x(8x1.25) =4x10 =40 0.45X99 =0.45x(100-1) =0.45x100-0.45 =45-0.45 =44.55 53X10.1 =53x(10+0.1) =53x10+53x0.1 =530+5.3 =535.3 4.2X6.51+3.49X4.2 =4.2x(6.51+3.49) =4.2x10 =42 9.99X1....

32X0.25X1.25的简便 32X0.25X1.25 =(0.25*4)*(1.25*8) =1*10 =10

32X0.25X1.25脱式计算 32X0.25X1.25 =(0.25*4)*(1.25*8) =1*10 =10

1.25×32x2.5 =1.25×8x4x2.5 =10x10 =100

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