用简便方法计算下面各题.(2-0.92)÷(0.12+0.15)(2.4+7.2)÷0.24
问题描述:
用简便方法计算下面各题.
(2-0.92)÷(0.12+0.15)
(2.4+7.2)÷0.24
答
用简便方法计算下面各题.
(2-0.92)÷(0.12+0.15)
(2.4+7.2)÷0.24