5.27-2.1+1.73-1.9简便计算
第1个回答 2016-11-03
5.27-2.1+1.73-1.9
=5.27+1.73-2.1-1.9
=（5.27+1.73）-（2.1+1.9）
=7-4
=3
=5.27+1.73-2.1-1.9
=（5.27+1.73）-（2.1+1.9）
=7-4
=3
第2个回答 2016-11-03
5.27-2.1+1.73-1.9
=（5.27+1.73）-(2.1+1.9)
=7-4
=3本回答被网友采纳
=（5.27+1.73）-(2.1+1.9)
=7-4
=3本回答被网友采纳
第3个回答 2016-11-03
=(5.27+1.73)-(2.1+1.9)
=7-4
=3
=7-4
=3
