1.2*3.6+2.4*2+4.8*0.6怎样简便计算
问题描述:
1.2*3.6+2.4*2+4.8*0.6怎样简便计算
答
解1.2*3.6+2.4*2+4.8*0.6
=2.4*1.8+2.4*2+2.4*1.2
=2.4*(1.8+2+1.2)
=2.4*5
=12