(4.6-3.2)×11.5=1.4x11.5=(1+0.4)x11.5=1x11.5+0.4x11.5=11.5+4.6=16.1希望帮到你 望采纳 谢谢 加油
(4.6-3.2)×11.5=1.4×11.5=0.7×23=16.1
(4.6-3.2)×11.5 =1.4x11.5 =(1+0.4)x11.5 =1x11.5+0.4x11.5 =11.5+4.6 =16.1