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44乘以四十三分之五十七,简便算法?

四十二乘四十三分之四十一的简便算法 42×41/43 =(43-1)×41/43 =43×41/43-41/43 =41-41/43 =40又2/43

四十三分之五十一加四十三分之二十九乘以二十四加五十一

44/45*37 =(1-1/45)*37 =1*37-37/45 =36又45分之8

-45又1/43÷(-44) =(45x43+1)/(43x44) =(43^2+2x43+1)/(43x44) =(43+1)^2/(43x44) =44^2/(43x44) =44/43

15/43×57+87×5/43 =15/43×57+29×15/43 =15/43×(57+29) =15/43×86 =30

44x1/43+42x1又1/43 =44/43+42x44/43 =44/43x(1+42) =44/43x43 =44

24×四十三分之五十一+51×四十三一分之十九 =51x24/43+51x19/43 =51x(24/43+19/43) =51x1 =51

五十八度二十三分四十二秒 = 58.395°

44/45x37 =(1-1/45)x37 =37-1/45x37 =37-37/45 =36又8/45

67×29/34 =(68-1)×29/34 =68×29/34-1×29/34 =58-29/34 =57又5/34

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