求高人解答 急!(9991.9991+1999.1999+1999*9991.9991)/2.0002+1001
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求高人解答 急!
(9991.9991+1999.1999+1999*9991.9991)/2.0002+1001
(9991.9991+1999.1999+1999*9991.9991)/2.0002+1001
![求高人解答 急!(9991.9991+1999.1999+1999*9991.9991)/2.0002+1001](/uploads/image/z/19263546-18-6.jpg?t=%E6%B1%82%E9%AB%98%E4%BA%BA%E8%A7%A3%E7%AD%94+%E6%80%A5%21%289991.9991%2B1999.1999%2B1999%2A9991.9991%29%2F2.0002%2B1001)
(9991.9991+1999.1999+1999*9991.9991)/2.0002+1001
=[1.0001*(9991+1999+1999*9991)]/2.0002+1001
=(9991+1999+1999*9991)/2+1001
=[9991*(1+1999)+1999]/2+1001
=[9991*2000+1999]/2+1001
=9991*1000+999.5+1001
=9991000+2000.5
=9993000.5
=[1.0001*(9991+1999+1999*9991)]/2.0002+1001
=(9991+1999+1999*9991)/2+1001
=[9991*(1+1999)+1999]/2+1001
=[9991*2000+1999]/2+1001
=9991*1000+999.5+1001
=9991000+2000.5
=9993000.5