如题所述
第1个回答 2016-09-10
84X0.6+9.4
=84X0.6+8.4+1
=84X(0.6+0.1)+1
=84X0.7+1
=58.8+1
=59.8本回答被网友采纳
=84X0.6+8.4+1
=84X(0.6+0.1)+1
=84X0.7+1
=58.8+1
=59.8本回答被网友采纳
第2个回答 2016-09-10
8X0.6+0.4×0.6+9.4=4.8+0.24+9.4=5.04+9.4=14.44
第3个回答 2019-04-12
8.4*0.6+9.4
=8.4*0.6+8.4+1
=8.4*(0.6+1)+1
=8.4*1.6+1
=13.44+1
=14.44
=8.4*0.6+8.4+1
=8.4*(0.6+1)+1
=8.4*1.6+1
=13.44+1
=14.44