(72+68)÷(72-68) 用简便方法怎么算?
问题描述:
(72+68)÷(72-68) 用简便方法怎么算?
答
=(72+68)÷4
=72÷4+68÷4
=18+17
=35
(72+68)÷(72-68) 用简便方法怎么算?
=(72+68)÷4
=72÷4+68÷4
=18+17
=35