动脑筋:巧算1.56000/(14000/16)2.45000/(25*90)用最简便方法
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动脑筋:巧算1.56000/(14000/16)2.45000/(25*90)用最简便方法
动脑筋:巧算
1.56000/(14000/16)
2.45000/(25*90)
用最简便方法
动脑筋:巧算1.56000/(14000/16)2.45000/(25*90)用最简便方法
1.56000/(14000/16)
=(14000*4)/(14000/16)
=1/4
2.45000/(25*90)
=(25*1800)/(25*90)
=20