3.72-0.375+2.28-0.625 101÷10/111-11又1/10 1/2004+2/2004+3/2004+……(省略号)+2003/2004

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3.72-0.375+2.28-0.625 101÷10/111-11又1/10 1/2004+2/2004+3/2004+……(省略号)+2003/2004

3.72-0.375+2.28-0.625 101÷10/111-11又1/10 1/2004+2/2004+3/2004+……(省略号)+2003/2004
3.72-0.375+2.28-0.625 101÷10/111-11又1/10 1/2004+2/2004+3/2004+……(省略号)+2003/2004

3.72-0.375+2.28-0.625 101÷10/111-11又1/10 1/2004+2/2004+3/2004+……(省略号)+2003/2004
3.72-0.375+2.28-0.625
=(3.72+2.28)-(0.375+0.625)
=6-1
=5
101÷10/111-11又1/10
=101*111/10-111/10
=(101-1)*111/10
=100*111/10
=10*111
=1110
1/2004+2/2004+3/2004+……(省略号)+2003/2004
=(1+2+3+.+2003)/2004
=(1+2003)*2003/2/2004
=2003/2