0.75×102×2的简便计算
问题描述：
0.75×102×2的简便计算
答
0.75*102*2
=0.75*204
=0.75*200+0.75*4
=150+3
=153
答
0.75×102×2=0.75*2（100+2）=1.5*100+1.5*2=150+3=153
答
0.75×102×2=0.75×(100+2)×2=0.75(200+4)=150+3=153