简便计算2.14+0.39÷1.3 100-123.1×0.3 2.1×5.5怎样简便就怎样计算_数学解答

简便计算
2.14+0.39÷1.3 100-123.1×0.3 2.1×5.5
怎样简便就怎样计算

人气：120 ℃　时间：2020-03-27 23:17:38

解答

2.14+0.39÷1.3
=2.14+0.3
=2.44
100-123.1×0.3
=100-12.31*3
=100-36.93
=63.07
2.1×5.5
=2.1*5*1.1
=10.5*1.1
=11.55