3.6乘14.4加9.3乘32加3.21乘36 简便怎么解
问题描述:
3.6乘14.4加9.3乘32加3.21乘36 简便怎么解
答
3.6*14.4+9.3*32+3.21*36
=3.6(14.4+32.1)+9.3*32
=3.6*46.5+9.3*32
=3.6*5*9.3+9.3*32
=9.3(18+32)
=9.3*50
=465