多写出几个,就发现规律...
(100+80)÷2=90
(110+90)÷2=100
(80+100)÷2=90
(90+90)÷2=90
(100+90)÷2=95
(90+95)÷2=92.5
(90+92.5)÷2=91.25
(95+91.25)÷2=93.125
(92.5+93.125)÷2=92.8125
(91.25+92.8125)÷2=92.03125
(93.125+92.03125)÷2=92.578125
(92.8125+92.578125)÷2=92.6953125
(92.03125+92.6953125)÷2=92.36328125
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再往后,整数部分都是92
所以第2004个的整数部分是92