63.8-1.64+13.2-5.36用简便方法计算
问题描述:
63.8-1.64+13.2-5.36用简便方法计算
答
63.8-1.64+13.2-5.36 =(63.8+13.2)-(1.64+5.36) =77-7 =70
63.8-1.64+13.2-5.36用简便方法计算
63.8-1.64+13.2-5.36 =(63.8+13.2)-(1.64+5.36) =77-7 =70