8.4÷0.6+8.4÷0.4用简便方法怎么计算谢谢
问题描述:
8.4÷0.6+8.4÷0.4用简便方法怎么计算谢谢
答
8.4÷0.6+8.4÷0.4
=8.4(0.6+0.4)
=8.4