( )+( )+( )=( )*( )*( )括号内填写什么数

=? = = = = =? = =? ===== ...............................快一点================= 米娜桑帮我想个作文题目吧,内容是关于孝的=============================================新颖一点的！新颖！============================================= == =.= = = = = == =-= - - -.- = =.