简便计算:4.8除以【0.1乘以(3.9-1.5)】=
问题描述:
简便计算:4.8除以【0.1乘以(3.9-1.5)】=
答
4.8除以【0.1乘以(3.9-1.5)】
=4.8÷[0.1×2.4]
=4.8÷0.1÷2.4
=4.8÷2.4÷0.1
=2÷0.1
=20