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怎样简便就怎样算 12.5X3.2X25

12.5×0.8×4×25

12.5x3.2x25 =12.5×0.8×4×25 =10×100 =1000

0.32可以拆分成0.4*0.8,然后12.5和0.8肯定是10啦,25和0.4肯定也是10啦,最后就是100啦。

53x25x2简便计算 解:采用结合律, 原式=53x25x2 =53x(25x2) =53x50 =2650

用简便方法计算 5x56x25 =(5×14)×(4×25) =70×100 =7000

53x99x25 =53x(100-1)x25 =53x100x25-53x1x25 =(5300-53)x25 =5247×25 =131175

12.6x5╳4x2x25简便计算怎么写 =12.6x(5x2)x(4x25) =12.6x10x100 =126x100 =12600

24×25=6×4×25=6×(4×25)=6×100=600

25x47+ 53x25简便运算 =25×(47+53) =25×100 =2500

35x30-25x25十5x75的简便计算方法是? 35x30-25x25十5x75 =25×42-25×25+15×25 =25×(42-25+15) =25×32 =800, 请采纳,谢谢.

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