(2005+1/2003)×1/2004简便算法 3/4×1/17+1/4×14/17简便算法

(2005+1/2003)×1/2004简便算法 3/4×1/17+1/4×14/17简便算法
(2005+1/2003)×1/2004简便算法 3/4×1/17+1/4×14/17简便算法

(2005+1/2003)×1/2004简便算法 3/4×1/17+1/4×14/17简便算法
(2005+1/2003)×1/2004
=（2004+2004/2003）/2004
=2004÷20042004/2003÷2004
=1+1/20003
=1又1/2003
3/4×1/17+1/4×14/17
=(3/4+1/4)×14/17
=14/17

(2005+1/2003)×1/2004
=(2004+1+1/2003) X 1/2004
=1+1/2003
=2004/2003
3/4×1/17+1/4×14/17
=(1/4+1/4+1/4) x 1/17 +1/4 x14/17
=1/4 x1/17+1/4 x1/17+1/4 x1/17+1/4+14/17
=1/4x(1/17...

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(2005+1/2003)×1/2004
=(2004+1+1/2003) X 1/2004
=1+1/2003
=2004/2003
3/4×1/17+1/4×14/17
=(1/4+1/4+1/4) x 1/17 +1/4 x14/17
=1/4 x1/17+1/4 x1/17+1/4 x1/17+1/4+14/17
=1/4x(1/17+1/17+1/17+14/17)
=1/4

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