20000/12.5/25/0.8/4怎么简便运算

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20000/12.5/25/0.8/4怎么简便运算
20000/12.5/25/0.8/4怎么简便运算

20000/12.5/25/0.8/4怎么简便运算
20000/12.5/25/0.8/4
=20000/(12.5*0.8)/(25*4)
=20000/10/100
=20000/1000
=20

20000/12.5/25/0.8/4
=20000÷(12.5*25*0.8*4)
=2000÷(12.5*0.8)÷(25*4)
=20000÷10÷100
=20