5.5*13.6-0.36*55怎样运用乘法分配律简便计算
问题描述:
5.5*13.6-0.36*55怎样运用乘法分配律简便计算
答
5.5*55*【13.6- 0.36】
答
原式=5.5*13.6-0.36*55
=5.5*13.6-3.6*5.5
=5.5*(13.6-3.6)
=5.5*10
=55
答
5.5*13.6-0.36*55
=5.5*13.6-3.6*5.5
=5.5*(13.6-3.6)
=5.5*10
=55
答
原式=5.5*(10+3.6)-3.6*5.5=5.5*10+5.5*3.6-3.6*5.5=55