如题所述
第1个回答 2015-04-07
解:原式=101-1.1×(100-1)
=101-110+1.1
=-(9-1.1)
=-7.9
供参考
=101-110+1.1
=-(9-1.1)
=-7.9
供参考
第2个回答 2015-04-07
101-1.1x99
=101-1.1x(100-1)
=101-(110-1.1)
=101-110+1.1
=-9+1.1
=-7.9本回答被网友采纳
=101-1.1x(100-1)
=101-(110-1.1)
=101-110+1.1
=-9+1.1
=-7.9本回答被网友采纳
第3个回答 推荐于2016-04-03
101-1.1x99
=101-(1+0.1)x99
=101-99-0.1x99
=2-0.1x(100-1)
=2-10+0.1
=-8+0.1
=-7.9
=101-(1+0.1)x99
=101-99-0.1x99
=2-0.1x(100-1)
=2-10+0.1
=-8+0.1
=-7.9