第1个回答 2014-11-29
原式=25x56+25x3x43+25x3
=25x(56+3x43+3)
=25x(56+129+3)
=25x188
=25x100+25x80+25x8
=2500+2000+200
=4700本回答被网友采纳
=25x(56+3x43+3)
=25x(56+129+3)
=25x188
=25x100+25x80+25x8
=2500+2000+200
=4700本回答被网友采纳
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