【0.34×0.5×0.6的简便方法,1.2×2.5+0.8-查字典问答网
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  【0.34×0.5×0.6的简便方法,1.2×2.5+0.8×2.5的简便方法,(0.8+0.2)×6.7的简便方法,99×1.45的简...0.34×0.5×0.6的简便方法,1.2×2.5+0.8×2.5的简便方法,(0.8+0.2)×6.7的简便方法,99×1.45的简便方法,99×1.45+3×1.4】

  0.34×0.5×0.6的简便方法,1.2×2.5+0.8×2.5的简便方法,(0.8+0.2)×6.7的简便方法,99×1.45的简...

  0.34×0.5×0.6的简便方法,1.2×2.5+0.8×2.5的简便方法,(0.8+0.2)×6.7的简便方法,99×1.45的简便方法,99×1.45+3×1.45-1.45×2的简便方法,99×1.45+1.45的简便方法,99×1.45+2×1.45-1.45的简便方法.

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2020-12-09 05:46
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李江荣

  0.34×0.5×0.6

  =0.34*0.3

  =1.02

  1.2×2.5+0.8×2.5

  =2,.5*(1.2+0.8)

  =2.5*2

  =5

  (0.8+0.2)×6.7

  =1*6.7

  =6.7

  99×1.45

  =(100-1)*1.45

  =145-1.45

  =143.55

  99×1.45+3×1.45-1.45×2

  =99×1.45+1.45*(3-2)

  =99×1.45+1.45

  =1.45*(99+1)

  =145

  99×1.45+1.45

  =(99+1)*1.45

  =145

  99×1.45+2×1.45-1.45

  =99×1.45+(2-1)×1.45

  =99×1.45+1.45

  =(99+1)*1.45

  =145

2020-12-09 05:48:48

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