求简便算式125*456/7.89/4.56*78.9/1.25__________________________________________.
问题描述：
求简便算式125*456/7.89/4.56*78.9/1.25__________________________________________.
答
原式=(125*456*78.9)/(1.25*7.89*4.56)
=(125/1.25)*(456/4.56)*(78.9/7.89)
=100*100*10
=100000
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